This Extech USB Datalogger eliminates the hassle of cables while downloading because it plugs directly into your USB computer port. Powerful data logger stores up to 32,000 readings but weighs only 1 oz. This temperature/humidity model includes Windows® analysis software, which allows you to set the logging rate from two seconds to 24 hr., set the high/low alarm thresholds and download data. Temperature logging range –40° to 158°F with ±1°F accuracy between –4° to 122°F. Humidity model range is 0% to 100% RH with ±3% accuracy. 5"L x 1"W x 1"H.

NOTE: Not for sale in Alaska, Hawaii, U.S. Territories and International. Cannot be shipped by air.

Requires special handling due to DOT regulations. Additional shipping charges will apply. Cannot be shipped by air.

Not for sale in Alaska, Hawaii

This product is not eligible for promotional offers.

WARNING: Cancer and Reproductive Harm -


  • Manufacturer #: RHT10
  • Type: Temperature/Humidity
  • Air Temperature Accuracy: ±1.8°F (14° to 104°F); ±1°C (10° to 40°C)
  • Air Temperature Range: –40° to 158°F (40° to 70°C)
  • Air Temperature Resolution: 0.1°F/°C
  • Memory: 32,000 sets
  • Model: Temperature and Humidity
  • Battery Life: 1 Year
  • Battery Type: 3.6V lithium
  • Humidity Accuracy: ±3% (40 to 60%); ±3.5% (20 to 40% and 60 to 80%)