Air & Water / Humidity Monitors

Humidity monitors

Humidity measured · Moisture risk made visible

Simple humidity gauges help identify overly damp rooms before condensation and moisture damage become persistent.

28 of 30 listings have structured evidence records; 28 use manufacturer, official-manual, or certification documentation. Legacy records remain visible but clearly labeled while migration continues.
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Fischer 111.01 Hair Hygrometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 111.01B002D4OT7Q Fischer 111.01 Hair Hygrometer Why it qualified: Mechanical hygrometer uses specially treated human hair as the sensing element. Measures relative humidity without a battery, wireless radio or electronic sensor. Handcrafted in Germany; exact Amazon page confirms model 111.01. Human-hair hygrometers need periodic high-humidity regeneration indoors and can drift if not maintained. The Amazon seller is a third-party importer. Confirm exact housing finish, current seller, price, origin label, adjustment and maintenance instructions. Materials: Specially treated human-hair sensing element; stainless-steel or brass housing; battery-free mechanical movement Check current price
Documented source The exact Fischer B002D4OT7Q Amazon page was orderable on 2026-07-29 at $198.98, rated 4.0 from 64 reviews and identified model 111.01 and part 111.01-001. Fischer's exact 111 page documents a treated-human-hair sensing element, brass or stainless-steel housing, ±3% RH accuracy from 20% to 100% RH and German hand manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Model Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 111.01T Hair Hygrometer and Thermometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 111.01TB00E3SJV8C Fischer 111.01T Hair Hygrometer and Thermometer Why it qualified: Analog instrument combines a treated-human-hair hygrometer with a thermometer. Measures 0% to 100% RH with specified ±3% RH accuracy from 20% to 100%. Handcrafted in Germany; exact Amazon offer was in stock. Human-hair sensing requires periodic regeneration when used indoors. The marketplace seller is an importer rather than Fischer. Confirm current seller, price, exact model, origin label, scale, adjustment and maintenance instructions. Materials: Specially treated human-hair sensing element; stainless-steel housing; bimetal thermometer; battery-free mechanical movements Check current price
Documented source The exact Fischer 111.01T Amazon offer was in stock on 2026-07-29 at $213.71, rated 4.1 from 85 reviews and sold by an importing marketplace seller. The exact listing and Fischer's 111T/111 documentation identify a treated-human-hair hygrometer, thermometer, stainless-steel housing, 0% to 100% RH range, ±3% RH accuracy from 20% to 100% RH and German manufacture. Current Exact Amazon Offer Plus Manufacturer Family Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 1222-01 Indoor Climate Hygrometer and Thermometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 1222-01B07H5D2CSW Fischer 1222-01 Indoor Climate Hygrometer and Thermometer Why it qualified: Battery-free indoor instrument combines a synthetic-fiber hygrometer and bimetal thermometer. Manufacturer specifies ±3% RH accuracy and rapid response to humidity changes. Handcrafted in Germany; exact current Amazon offer identifies model 1222-01. The current English manufacturer catalog provides limited exact-page detail, so material and accuracy claims are restricted to the exact listing and manufacturer family documentation. Confirm current seller, price, origin label, scale and adjustment instructions. Materials: Specially treated synthetic-fiber humidity element; stainless-steel housing; bimetal thermometer; battery-free mechanical movements Check current price
Documented source The exact Fischer 1222-01 Amazon offer was orderable on 2026-07-29 at $284.15, rated 4.4 from 38 reviews and identified as made in Germany. The exact listing and manufacturer catalog document a stainless-steel 130 mm indoor climate instrument with synthetic-fiber hygrometer, bimetal thermometer and ±3% RH accuracy. Current Exact Amazon Offer Plus Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 1225HT-22 Wine Cellar Hygrometer and Thermometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 1225HT-22FV2B07JNT72JB Fischer 1225HT-22 Wine Cellar Hygrometer and Thermometer Why it qualified: Wine-cellar instrument combines a real-hair hygrometer and bimetal thermometer. Diamond-polished brass and a stained, varnished mahogany-colored wood case are disclosed. Handcrafted in Germany; exact Amazon offer identified Fahrenheit model 1225HT-22Fv2. Contains stained and varnished wood; coating composition is not disclosed. Human-hair sensing requires regeneration and adjustment checks. Confirm seller, price, origin label, Fahrenheit scale and maintenance instructions. Materials: Real human-hair humidity element; bimetal thermometer; diamond-polished brass; stained and varnished mahogany-colored wood case; battery-free mechanical movements Check current price
Documented source The exact Fischer 1225HT-22Fv2 Fahrenheit Amazon offer had two units reported remaining on 2026-07-29 at $199.50, sold by LoewenGermanProducts and rated 4.0 from nine reviews. The exact listing and manufacturer page document a real-hair hygrometer, bimetal thermometer, diamond-polished brass, stained and varnished mahogany-colored wood case, ±5% RH accuracy and German manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 1694R-22 Pascal Weather Station NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 1694R-22-USB077CVB55J Fischer 1694R-22 Pascal Weather Station Why it qualified: Battery-free indoor station combines hygrometer, thermometer and aneroid barometer. Mahogany-colored wood, diamond-ground brass and mineral-glass cover materials are disclosed. Handcrafted in Germany; exact Amazon offer identified model 1694R-22-US. The wood stain or varnish chemistry and hygrometer sensing-element composition are not disclosed. Barometer setup requires local-altitude adjustment. Confirm current seller, price, origin label, finish, scale and adjustment instructions. Materials: Humidity-sensing mechanical element with composition not disclosed; bimetal thermometer; aneroid barometer; mahogany-colored wood; diamond-ground brass; mineral-glass cover; battery-free movements Check current price
Documented source The exact Fischer 1694R-22-US Pascal Amazon offer had two units reported remaining on 2026-07-29 at $249.50, sold by LoewenGermanProducts and rated 4.2 from 32 reviews. The exact listing and manufacturer page document hygrometer, thermometer and aneroid barometer movements in a mahogany-colored wood case with diamond-ground brass and mineral-glass cover, ±5% RH accuracy and German manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 192-01EN Sauna Hygrometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 192-01ENB01M5HABNQ Fischer 192-01EN Sauna Hygrometer Why it qualified: Dedicated battery-free sauna hygrometer uses a synthetic-hair sensing element. Measures 0% to 100% relative humidity in a high-temperature use case. Handcrafted in Germany; exact Amazon offer was live and orderable. The exact English manufacturer page is limited, so accuracy is not claimed beyond the exact listing. Sauna placement strongly affects readings. The review count is small. Confirm current seller, price, origin label, scale, heat limits and adjustment instructions. Materials: Specially treated synthetic-hair humidity element; stainless-steel case; battery-free mechanical movement Check current price
Documented source The exact Fischer 192-01EN sauna hygrometer Amazon offer was orderable on 2026-07-29 at $179, sold by LoewenGermanProducts and rated 4.8 from five reviews. The exact listing and Fischer sauna documentation identify a synthetic-hair humidity element, stainless-steel case, 0% to 100% RH scale, battery-free mechanical operation and German hand manufacture. Current Exact Amazon Offer Plus Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
HOBO MX1101 Temperature and Relative Humidity Data Logger CE; FCC AND OTHER REGIONAL RADIO COMPLIANCE MARKS DISCLOSED BY MANUFACTURER; OPTIONAL NIST CERTIFICATION IS NOT INCLUDED BY DEFAULTHOBO MX1101B00VTQFFR2 HOBO MX1101 Temperature and Relative Humidity Data Logger Why it qualified: Bluetooth indoor logger measures temperature and 1% to 90% relative humidity. Typical humidity accuracy is ±2% RH from 20% to 80% RH. The enclosure resin and RH sensing chemistry are not disclosed. Requires the HOBOconnect app and compatible device; optional NIST certification costs extra. Confirm current seller authorization, price, origin label and calibration needs. Materials: Enclosure resin not disclosed; electronic temperature sensor; relative-humidity sensor; LCD; two replaceable AAA alkaline batteries Check current price
Documented source The exact HOBO MX1101 Amazon offer was in stock on 2026-07-29 at $159, sold by MicroDAQ and rated 4.4 from 102 reviews. The exact manufacturer page documents Bluetooth temperature/RH logging, ±2% RH typical accuracy, 84,650-measurement memory and two replaceable AAA batteries. Authorized product-country sources identify United States origin. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
HOBO MX1104 Temperature, Humidity, Light and Analog Data Logger IP54 ENVIRONMENTAL RATING; OPTIONAL EXTERNAL SENSOR CERTIFICATIONS VARYHOBO MX1104B084BYX7KR HOBO MX1104 Temperature, Humidity, Light and Analog Data Logger Why it qualified: Bluetooth logger measures temperature, relative humidity and light with an external analog input. Typical humidity accuracy is ±2.5% RH from 10% to 90% RH. The enclosure resin and humidity-sensor chemistry are not disclosed. Requires HOBOconnect and external cabling for the analog channel. The review count is one. Confirm current seller authorization, price, origin label, app support and calibration needs. Materials: Enclosure resin not disclosed; electronic temperature and relative-humidity sensors; light sensor; analog-input electronics; LCD; two replaceable AAA alkaline batteries Check current price
Documented source The exact HOBO MX1104 Amazon offer had fifteen units reported remaining on 2026-07-29 at $235, sold by MicroDAQ and rated 5.0 from one review. The exact manufacturer page documents temperature, 0% to 100% RH, light and analog-input logging, ±2.5% RH typical accuracy, two AAA batteries, 1.9 million measurements and IP54. Authorized product sources identify United States origin. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
HOBO MX2301A Weatherproof Temperature and Humidity Data Logger NEMA 6; IP67; OPTIONAL CALIBRATION SERVICES ARE NOT INCLUDED BY DEFAULTHOBO MX2301AB07KX5Z32Q HOBO MX2301A Weatherproof Temperature and Humidity Data Logger Why it qualified: Weatherproof Bluetooth logger has integrated temperature and humidity sensors. Typical humidity accuracy is ±2.5% RH from 10% to 90% RH. Requires HOBOconnect and a compatible device. A solar-radiation shield may be needed for accurate outdoor air measurements. The review count is small. Confirm current seller authorization, price, origin label, app support and calibration needs. Materials: Acetal housing; silicone gasket; stainless-steel screws; integrated electronic temperature and relative-humidity sensors; replaceable 2/3 AA lithium battery Check current price
Documented source The exact HOBO MX2301A Amazon offer had ten units reported remaining on 2026-07-29 at $220, sold by Inspector Tools and rated 4.8 from three reviews. The exact manufacturer page documents integrated temperature/RH sensors, ±2.5% RH typical accuracy, acetal housing, silicone gasket, stainless-steel screws, NEMA 6 and IP67 protection. Authorized product-country sources identify USA manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
HOBO MX2302A External Temperature and Humidity Data Logger NEMA 6; IP67; OPTIONAL CALIBRATION SERVICES ARE NOT INCLUDED BY DEFAULTHOBO MX2302AB07P97KXF1 HOBO MX2302A External Temperature and Humidity Data Logger Why it qualified: Weatherproof Bluetooth logger uses an external temperature and humidity probe. Typical humidity accuracy is ±2.5% RH from 10% to 90% RH. Requires HOBOconnect and a compatible device. A solar-radiation shield may be needed outdoors. The offer had only one unit and one review, so availability and rating are fragile. Confirm seller authorization, origin label, app support and calibration needs. Materials: Acetal housing; silicone gasket; stainless-steel screws; external electronic temperature and relative-humidity probe; replaceable 2/3 AA lithium battery Check current price
Documented source The exact HOBO MX2302A Amazon offer had one unit reported remaining on 2026-07-29 at $265, sold by MicroDAQ and rated 5.0 from one review. The exact manufacturer page documents an external temperature/RH probe, ±2.5% RH typical accuracy, acetal housing, silicone gasket, stainless-steel screws, NEMA 6 and IP67 protection. Exact-product sources identify USA origin. Current Exact Amazon Offer Plus Exact Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
HOBO UX100-003 Temperature and Relative Humidity Data Logger IP50 ENVIRONMENTAL RATING; OPTIONAL NIST CERTIFICATION IS NOT INCLUDED BY DEFAULTHOBO UX100-003B00U80GRWM HOBO UX100-003 Temperature and Relative Humidity Data Logger Why it qualified: USB logger records indoor temperature and 15% to 95% relative humidity. Specified accuracy is ±3.5% RH from 25% to 85% RH. The enclosure resin and RH sensing chemistry are not disclosed. Requires HOBOware and a USB connection; optional calibration services cost extra. Confirm current seller authorization, price, origin label, software compatibility and calibration needs. Materials: Enclosure resin not disclosed; electronic temperature sensor; user-replaceable relative-humidity sensor; LCD; lithium battery; USB interface Check current price
Documented source The exact HOBO UX100-003 Amazon offer was orderable with Add to Cart and Buy Now on 2026-07-29 at $140, sold by Inspector Tools and rated 4.3 from 34 reviews. The exact listing and manufacturer documentation identify 15% to 95% RH, ±3.5% RH accuracy from 25% to 85% RH, IP50, a replaceable RH sensor, USB operation and United States origin. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews Orderability And Seller Evidence · Reviewed 2026-07-29 View supporting source
HOBO UX100-011A Temperature and Relative Humidity Data Logger CE MARK; IP50 ENVIRONMENTAL RATING; OPTIONAL NIST CERTIFICATION IS NOT INCLUDED BY DEFAULTHOBO UX100-011AB07VFYC4DS HOBO UX100-011A Temperature and Relative Humidity Data Logger Why it qualified: USB logger measures temperature and 1% to 95% relative humidity indoors. Typical humidity accuracy is ±2.5% RH from 10% to 90% RH. The enclosure resin and RH sensing chemistry are not disclosed. Requires HOBOware and a USB cable; optional NIST calibration costs extra. The review count is very small. Confirm current seller authorization, price, origin label and calibration needs. Materials: Enclosure resin not disclosed; electronic temperature sensor; user-replaceable relative-humidity sensor; LCD; CR2032 lithium battery; USB interface Check current price
Documented source The exact HOBO UX100-011A Amazon offer had twelve units reported remaining on 2026-07-29 at $195, sold by MicroDAQ and rated 5.0 from two reviews. The exact manufacturer page documents 1% to 95% RH, ±2.5% RH typical accuracy, a user-replaceable RH sensor, CR2032 battery, USB interface and IP50. Authorized exact-product sources identify United States origin. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Kestrel 3500FW Fire Weather Meter CE; ROHS; WEEE; INDIVIDUALLY TESTED TO NIST-TRACEABLE STANDARDS; IP67; NEMA-6; MIL-STD-810G DROP-TESTEDKESTREL 3500FWB01J7Y3WQS Kestrel 3500FW Fire Weather Meter Why it qualified: Rugged handheld meter measures relative humidity, temperature, pressure and wind. Polymer-capacitive humidity, isolated thermistor and silicon pressure sensors are documented. The housing resin is not disclosed. Fire-weather functions require correct field use and do not replace professional safety protocols. Allow humidity equilibration and confirm current seller, price, origin label and calibration requirements. Materials: Housing resin not disclosed; polymer-capacitive humidity sensor; hermetically sealed precision thermistor; silicon piezoresistive pressure sensor; replaceable impeller; CR2032 battery Check current price
Documented source The exact Kestrel 3500FW Amazon offer was in stock on 2026-07-29 at $219, sold by NK Kestrel and rated 4.7 from 141 reviews. The exact manufacturer page confirms polymer-capacitive humidity, thermistor and silicon pressure sensing, IP67 sealing, MIL-STD-810G drop testing, NIST-traceable individual testing and USA manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Certification Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Kestrel 5000 Environmental Meter with LiNK CE; ROHS; FCC; IC; WEEE; INDIVIDUALLY TESTED TO NIST-TRACEABLE STANDARDS; IP67; NEMA-6; MIL-STD-810G DROP-TESTEDKESTREL 5000 LINKB017AF15YW Kestrel 5000 Environmental Meter with LiNK Why it qualified: Bluetooth-enabled handheld meter measures humidity, temperature, pressure and wind. Logs more than 10,000 time-stamped environmental records. The housing resin is not disclosed. Bluetooth range, app support and battery life vary by use. Humidity readings require equilibration after environmental changes. Confirm current seller, price, origin label and calibration requirements. Materials: Housing resin not disclosed; relative-humidity sensor; isolated temperature sensor; pressure sensor; replaceable impeller; lithium AA battery Check current price
Documented source The exact Bluetooth-enabled Kestrel 5000 Amazon offer had six units reported remaining on 2026-07-29 at $359, sold by NK Kestrel and rated 4.8 from 35 reviews. The manufacturer page confirms humidity, temperature, pressure and wind sensing, more than 10,000 logged data sets, IP67 and NEMA-6 sealing, compliance testing and USA manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Certification Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Kestrel 7000 Environmental Meter CERTIFICATE OF CONFORMITY; INDIVIDUALLY TESTED TO NIST-TRACEABLE STANDARDS; IP67; MIL-STD-810G DROP-TESTEDKESTREL 7000B0DCLPZSNJ Kestrel 7000 Environmental Meter Why it qualified: Professional meter focuses on precise relative-humidity and temperature monitoring. Field-replaceable RH sensor is specified at ±2% RH accuracy from 10% to 90% RH. The housing resin is not disclosed. The Amazon offer had no displayed review aggregate. Humidity readings require equilibration and professional compliance work may require periodic calibration. Confirm current seller, price, origin label and certificate scope. Materials: Housing resin not disclosed; field-replaceable relative-humidity and temperature sensor module; battery-powered electronics Check current price
Documented source The exact blue Kestrel 7000 Amazon offer was orderable on 2026-07-29 at $349, sold by NK Kestrel and usually shipping within two to three days. The exact manufacturer page confirms a field-replaceable ±2% RH sensor, temperature sensing, Bluetooth data logging, IP67 protection, certificate of conformity, NIST-traceable individual testing and USA manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Certification Origin Price Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Kestrel DROP D2 Wireless Temperature and Humidity Data Logger CE; ROHS; FCC; IC; WEEE; INDIVIDUALLY TESTED TO NIST-TRACEABLE STANDARDS; IP67; NEMA-6KESTREL DROP D20720 Kestrel DROP D2 Wireless Temperature and Humidity Data Logger Why it qualified: Compact Bluetooth logger directly measures temperature and relative humidity. Specified humidity accuracy is ±2% RH from 10% to 90% RH. The housing resin is not disclosed. Bluetooth alerts require a compatible nearby device, and humidity readings need equilibration after large environmental changes. Confirm current price, availability, country label and calibration needs. Materials: Housing resin not disclosed; relative-humidity sensor; externally isolated temperature sensor; user-replaceable CR2032 battery Check current price
Documented source The exact Kestrel DROP D2 manufacturer page was in stock on 2026-07-29 at $109. It documents direct temperature and relative-humidity logging, ±2% RH accuracy from 10% to 90% RH, Bluetooth, more than 7,000 data points, CR2032 battery, IP67 and NEMA-6 sealing, model-specific compliance and USA manufacture. Exact Amazon search returned no usable DROP D2 offer. Current Exact Manufacturer Sensor Certification Origin Price And Availability After Amazon Exhaustion · Reviewed 2026-07-29 View supporting source
Kestrel DROP D3 Temperature, Humidity and Pressure Data Logger CE; ROHS; FCC; IC; WEEE; INDIVIDUALLY TESTED TO NIST-TRACEABLE STANDARDS; IP67KESTREL DROP D3B00JBFNNVS Kestrel DROP D3 Temperature, Humidity and Pressure Data Logger Why it qualified: Bluetooth logger measures relative humidity, temperature and barometric pressure. Specified humidity accuracy is ±2% RH from 10% to 90% RH. The housing resin is not disclosed. This is the red D3, not a color-variant duplicate. Bluetooth alerts require a compatible nearby device, and humidity readings need equilibration. Confirm current seller, price, origin label and calibration requirements. Materials: Housing resin not disclosed; relative-humidity sensor; externally isolated temperature sensor; monolithic silicon piezoresistive pressure sensor; CR2032 battery Check current price
Documented source The exact red Kestrel DROP D3 Amazon offer had five units reported remaining on 2026-07-29 at $139, sold by NK Kestrel and rated 4.1 from 28 reviews. The manufacturer page confirms temperature, ±2% RH humidity and silicon pressure sensing, Bluetooth logging, IP67 sealing, model-specific compliance and USA manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Certification Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
MadgeTech LynxPro-RH Bluetooth Temperature and Humidity Data Logger CE; INCLUDED ISO 17025-ACCREDITED CALIBRATION CERTIFICATEMADGETECH LYNXPRO-RH902374-00 MadgeTech LynxPro-RH Bluetooth Temperature and Humidity Data Logger Why it qualified: Bluetooth logger measures ambient temperature and 0% to 95% relative humidity. Humidity accuracy is ±3% RH from 25% to 75% RH under specified conditions. Specified accuracy applies only within the stated humidity and temperature range. Battery life varies with logging rate, and advanced desktop use may require a cable. Confirm exact RH variation, current price, lead time, country label and calibration expiration. Materials: Polycarbonate enclosure; electronic ambient temperature sensor; electronic ambient humidity sensor; replaceable CR2450 coin-cell battery Check current price
Documented source The exact LynxPro-RH manufacturer variation was orderable on 2026-07-29 at $199. It documents Bluetooth temperature and humidity logging, 0% to 95% RH, ±3% RH accuracy in the specified range, polycarbonate construction, a replaceable CR2450 battery, CE approval and an included ISO 17025-accredited calibration certificate. Exact Amazon search returned no matching LynxPro-RH. Current Exact Manufacturer Material Sensor Calibration Origin Price And Availability After Amazon Exhaustion · Reviewed 2026-07-29 View supporting source
MadgeTech MicroRHTemp Miniature Humidity and Temperature Data Logger INCLUDED ISO 17025-ACCREDITED CALIBRATION CERTIFICATEMADGETECH MICRORHTEMP900362-00 MadgeTech MicroRHTemp Miniature Humidity and Temperature Data Logger Why it qualified: Miniature 1.5-inch logger measures temperature and 0% to 95% relative humidity. Internal semiconductor humidity sensor is calibrated to ±3% RH. Made in the USA; exact Amazon search returned no matching MicroRHTemp offer. Requires a separately sold IFC102 or IFC202 interface package. Operating environment is non-condensing, and annual calibration is recommended. Confirm current price, availability, interface cost, calibration expiration and country label. Materials: 303 stainless-steel enclosure; internal semiconductor temperature sensor; internal semiconductor humidity sensor; internal battery Check current price
Documented source The exact MicroRHTemp manufacturer page was orderable on 2026-07-29 at $349. It documents a 1.5-inch 303-stainless-steel enclosure, semiconductor temperature and humidity sensors, 0% to 95% RH range, ±3% RH accuracy and an included ISO 17025-accredited calibration certificate. Exact Amazon search returned unrelated products and no matching MicroRHTemp offer. Current Exact Manufacturer Material Sensor Calibration Origin Price And Availability After Amazon Exhaustion · Reviewed 2026-07-29 View supporting source
MadgeTech RFPRHTemp2000A Wireless Pressure, Humidity and Temperature Data Logger US FCC; CANADA IC; CE; KCC; CMIIT; LCIE; INCLUDED STANDARD CALIBRATION CERTIFICATEMADGETECH RFPRHTEMP2000A901415-00 MadgeTech RFPRHTemp2000A Wireless Pressure, Humidity and Temperature Data Logger Why it qualified: Wireless display logger measures pressure, relative humidity and temperature. ABS enclosure, RTD temperature sensor and silicon pressure sensor are disclosed. Made in the USA; exact Amazon search returned no matching offer. The current product page does not publish a calibrated humidity-accuracy figure, so none is claimed. Wireless operation requires a separately sold RFC1000 interface. Confirm price, availability, country label, certificate scope and whether the documented accuracy fits the intended use. Materials: ABS enclosure; RTD temperature sensor; silicon pressure sensor; relative-humidity sensor with chemistry not disclosed; LCD; replaceable 9 V battery Check current price
Documented source The exact RFPRHTemp2000A manufacturer page was orderable on 2026-07-29 at $489. It documents pressure, humidity and temperature logging, an ABS enclosure, RTD temperature sensor, silicon pressure sensor, 0% to 95% RH operating range, wireless display, FCC/IC/CE and other radio approvals, and an included standard calibration certificate. Exact Amazon search returned no matching offer. Current Exact Manufacturer Material Sensor Calibration Origin Price And Availability After Amazon Exhaustion · Reviewed 2026-07-29 View supporting source
MadgeTech RFRHTemp2000A Wireless Temperature and Humidity Data Logger US FCC; CANADA IC; CE; KCC; CMIIT; LCIE; INCLUDED ISO 17025-ACCREDITED CALIBRATION CERTIFICATEMADGETECH RFRHTEMP2000A901423-00 MadgeTech RFRHTemp2000A Wireless Temperature and Humidity Data Logger Why it qualified: Wireless display logger measures temperature and 0% to 95% relative humidity. Humidity channel is calibrated to ±3% RH in the specified range. Made in the USA; exact Amazon search returned no matching offer. Wireless operation requires a separately sold RFC1000 interface or cloud relay. ABS is a synthetic enclosure material and the RH sensor chemistry is not disclosed. Confirm current price, availability, country label, interface cost and calibration expiration. Materials: ABS enclosure; RTD temperature sensor; relative-humidity sensor; LCD; replaceable 9 V lithium or alkaline battery Check current price
Documented source The exact RFRHTemp2000A manufacturer page was orderable on 2026-07-29 at $349. It documents an ABS enclosure, RTD temperature sensor, relative-humidity sensor calibrated to ±3% RH, wireless display, replaceable nine-volt battery, FCC/IC/CE and other radio approvals, and an included ISO 17025-accredited calibration certificate. Exact Amazon search returned no matching offer. Current Exact Manufacturer Material Sensor Calibration Origin Price And Availability After Amazon Exhaustion · Reviewed 2026-07-29 View supporting source
MadgeTech RHTemp101A Humidity and Temperature Data Logger CE; INCLUDED ISO 17025-ACCREDITED CALIBRATION CERTIFICATEMADGETECH RHTEMP101A901499-00 MadgeTech RHTemp101A Humidity and Temperature Data Logger Why it qualified: Compact logger measures temperature and 0% to 95% relative humidity. Internal semiconductor humidity sensor is calibrated to ±3% RH. Made in the USA; exact Amazon search returned no matching RHTemp101A offer. Requires an IFC200 interface package for computer communication. Accuracy applies within the specified humidity and temperature range. Confirm current price, lead time, included certificate expiration, interface needs and country label. Materials: Polycarbonate enclosure; precision RTD temperature element; internal semiconductor humidity sensor; long-life lithium battery Check current price
Documented source The exact RHTemp101A manufacturer page was orderable on 2026-07-29 at $159 with a stated five-to-seven-business-day lead time. It documents a polycarbonate enclosure, precision RTD temperature element, semiconductor humidity sensor, ±3% RH accuracy, ten-year battery life, CE approval and an included ISO 17025-accredited calibration certificate. Exact Amazon search returned no matching offer. Current Exact Manufacturer Material Sensor Calibration Origin Price And Availability After Amazon Exhaustion · Reviewed 2026-07-29 View supporting source
SensorPush HT.w Water-Resistant Temperature and Humidity Smart Sensor NO INDEPENDENT PRODUCT CERTIFICATION RELIED UPONSENSORPUSH HT.WB08PKWPKM2 SensorPush HT.w Water-Resistant Temperature and Humidity Smart Sensor Why it qualified: Water-resistant digital sensor measures temperature and relative humidity once per minute. Manufacturer specifies ±2% RH typical accuracy from 10% to 90% RH. Made in the USA and the exact Amazon offer was sold by SensorPush. The enclosure resin is not disclosed. Prolonged exposure above 80% RH can temporarily offset readings, the unit is not submersible, and remote alerts require the separately sold G1 gateway. Confirm current seller, price, rating, origin label and specifications before purchase. Materials: Enclosure polymer not disclosed; sensor-protective membrane; O-ring seals; digital temperature and humidity sensing component; user-replaceable CR2477 battery Check current price
Documented source The exact SensorPush HT.w Amazon offer was live on 2026-07-29 at $69.99, sold by SensorPush and rated 4.6 from 1,643 reviews. The exact manufacturer page confirms USA manufacture, a water-resistant sensor membrane and O-ring seals, CR2477 battery, 45 days of onboard logging and typical humidity accuracy of ±2% RH from 10% to 90% RH. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews And Seller Evidence · Reviewed 2026-07-29 View supporting source
SensorPush HTP.xw Temperature, Humidity and Pressure Smart Sensor NO INDEPENDENT PRODUCT CERTIFICATION RELIED UPONSENSORPUSH HTP.XWB08PKVRJJX SensorPush HTP.xw Temperature, Humidity and Pressure Smart Sensor Why it qualified: Premium smart sensor measures relative humidity, temperature and barometric pressure. Manufacturer specifies ±1.5% RH typical accuracy from 0% to 80% RH. Made in the USA and the exact in-stock Amazon offer was sold by SensorPush. The enclosure resin is not disclosed. Prolonged exposure above 80% RH can temporarily offset readings, the unit is not submersible, and remote alerts require the separately sold G1 gateway. Confirm current seller, price, rating, origin label and specifications before purchase. Materials: Enclosure polymer not disclosed; sensor-protective membrane; O-ring seals; digital humidity and temperature sensor; barometric pressure sensor; user-replaceable CR2477 battery Check current price
Documented source The exact SensorPush HTP.xw Amazon offer was in stock on 2026-07-29 at $89.99, sold by SensorPush and rated 4.5 from 996 reviews. The exact manufacturer page confirms USA manufacture, relative humidity, temperature and pressure sensing, membrane and O-ring water resistance, CR2477 battery and typical humidity accuracy of ±1.5% RH from 0% to 80% RH. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Temp Stick Remote WiFi Temperature and Humidity Sensor NO INDEPENDENT PRODUCT CERTIFICATION RELIED UPONTEMP STICKB01HH7YD2Y Temp Stick Remote WiFi Temperature and Humidity Sensor Why it qualified: Wi-Fi sensor monitors 0% to 100% RH with manufacturer-stated ±3% RH accuracy. Runs on two AA batteries without a separate gateway or subscription. The enclosure resin and sensing-component chemistry are not disclosed. Requires a private 2.4 GHz Wi-Fi network and does not support typical public or guest captive-portal networks. Confirm current seller, price, rating, origin label, accuracy and network compatibility. Materials: Enclosure polymer not disclosed; electronic temperature and relative-humidity sensing components; two replaceable AA batteries Check current price
Documented source The exact Temp Stick Amazon offer was in stock on 2026-07-29 at $149, sold by Ideal Sciences and rated 4.4 from 3,937 reviews. The exact manufacturer page confirms 0% to 100% RH monitoring, ±3% RH stated accuracy, two-AA-battery operation without a hub or subscription, and development, design and manufacture in the USA. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 122.01HT Living Climate Hygrometer and Thermometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 122.01HTB07XY59D55 Fischer 122.01HT Living Climate Hygrometer and Thermometer Why it qualified: Indoor analog instrument combines a synthetic-fiber hygrometer and thermometer. Measures 0% to 100% RH with specified ±3% RH accuracy from 20% to 100%. Made in Germany; exact Amazon offer was live with one unit reported remaining. The wood finish and any coating chemistry are not disclosed. The offer had one unit and a modest 3.8 rating from nine reviews. Confirm current seller, price, finish, origin label, scale and adjustment instructions. Materials: Specially treated synthetic-fiber humidity element; brass; stainless-steel case; real-wood stand; bimetal thermometer; battery-free mechanical movements Check current price
Documented source The exact Fischer 122.01HT Fahrenheit Amazon offer had one unit reported remaining on 2026-07-29 at $179.50, sold by LoewenGermanProducts and rated 3.8 from nine reviews. The exact manufacturer page documents a synthetic-fiber hygrometer, thermometer, brass and stainless-steel case, real-wood stand, 0% to 100% RH range, ±3% RH accuracy and German manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Fischer 196TH-03F Sauna Thermometer and Hygrometer NO ELECTRICAL OR INDEPENDENT MATERIALS CERTIFICATION APPLICABLE OR RELIED UPONFISCHER 196TH-03FB01HVP41R4 Fischer 196TH-03F Sauna Thermometer and Hygrometer Why it qualified: Sauna instrument combines a synthetic-hair hygrometer and bimetal thermometer. USA-scale version measures 0% to 60% RH and 90°F to 250°F. Handcrafted in Germany; exact Amazon offer was live and orderable. The wood finish composition is not disclosed, and the humidity accuracy specification covers only 0% to 30% RH. The 3.7 rating is modest. Confirm current seller, price, origin label, Fahrenheit scale, placement and adjustment instructions. Materials: Specially treated synthetic-hair humidity element; bimetal thermometer; light apachi wood case; battery-free mechanical movements Check current price
Documented source The exact Fischer 196TH-03F Fahrenheit sauna instrument Amazon offer was orderable on 2026-07-29 at $199.50, sold by LoewenGermanProducts and rated 3.7 from 47 reviews. The exact listing and manufacturer page document a synthetic-hair hygrometer, bimetal thermometer, light apachi wood case, ±3% RH accuracy from 0% to 30% RH and German manufacture. Current Exact Amazon Offer Plus Exact Manufacturer Material Sensor Origin Price Rating Reviews Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source
Kestrel 3000 Pocket Weather Meter CE; ROHS; WEEE; INDIVIDUALLY TESTED TO NIST-TRACEABLE STANDARDS; IP67; NEMA-6KESTREL 3000B06Y69L2V7 Kestrel 3000 Pocket Weather Meter Why it qualified: Handheld meter uses a polymer-capacitive humidity sensor and isolated thermistor. Measures relative humidity, temperature, dew point, heat index and wind speed. The Amazon title emphasizes wind and omits humidity, but exact model identity and humidity capability are confirmed by the manufacturer. The Amazon price materially exceeds the manufacturer price and the seller is not NK Kestrel. Confirm seller authorization, price, origin label and return terms before purchase. Materials: Housing resin not disclosed; polymer-capacitive humidity sensor; hermetically sealed precision thermistor; replaceable impeller with Zytel bearings; CR2032 battery Check current price
Documented source The exact Kestrel 3000 Amazon offer was in stock on 2026-07-29 at $272.42 and sold by EasySmart Products Online. The exact Kestrel page identifies model 3000 as a humidity-capable weather meter using a polymer-capacitive RH sensor and isolated thermistor, with IP67 sealing, NIST-traceable individual testing and USA manufacture. The manufacturer price was $179, so the Amazon offer carries a material marketplace markup. Current Exact Amazon Offer Plus Exact Manufacturer Sensor Certification Origin Price Availability And Seller Evidence · Reviewed 2026-07-29 View supporting source

What we screened out

Ozone generators Ionizers sold as filters Fragrance emitters