Extech 445703 Hygro-Thermometer


The Extech 445703 Hygro-Thermometer has 1 inch digits on a super large LCD. It simultaneously displays humidity and temperature.

The Extech 445703 Hygro-Thermometer has one inch digits on a super large LCD. It simultaneously displays humidity from 10% to 99% and temperature from 14 to 140°F or -10 to 60°C. Accuracy is ±5%RH and ±1.8°F/±1°C. Maximum/minimum with reset function. The Extech 445703 Hygro-Thermometer comes complete with stand, wall mounting bracket and 1 AAA battery.

  • Max/Min with “reset” function
  • Humidity: 10 to 99%RH
  • Temp: 14 to 140°F or -10 to 60°C
  • Accuracy: ±5%RH; ±1.8°F, ±1°C

Since 1971, Extech Instruments has focused on Test and Measurement tools built for the professionals, tradesperson and DIY’ers. Their single source strategy has made them the brand to turn to when it comes to tools that help prevent, identify and troubleshoot problems in a plethora of applications; whether it’s electrical, mechanical, maintenance, safety or environmental applications, their products are trusted by the professionals and are put to the test every day.

With over 45 years, Extech is renowned as one of the largest manufacturers and suppliers of innovative, quality handheld test, measurement and inspection tools in the world. Sold in over 100 countries around the world, Extech’s success is supported by a far-reaching network of dedicated and knowledgeable distributors who introduce new users to Extech every day.

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Specifications Range
Humidity range 10 to 99%RH
Basic RH accuracy ± 5% (25 to 80%)
Temperature range 14 to 140°F (-10 to 60°C)
Basic Temperature Accuracy +/-1.8F/1°C (14 to 122°F)
Dimensions 4.3 x 3.9 x 0.78″(109 x 99 x 20mm)
Weight 6oz (169g)

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