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Sensor Type
Temperature / Freeze
Tool Type
Temperature Measurement
Battery Operated
LCD Display
Ease of Installation
Beginner (Installs < 10 minutes)
Extech Instruments
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Large Digit Hygro-Thermometer on Super Large LCD
Extech Instruments 445703 Big Digit Hygro-Thermometer
Extech Instruments 445703 Big Digit Hygro-Thermometer
Extech Instruments 445703 Big Digit Hygro-Thermometer
Item# 90267
Price: Normally $42.99 
Hot Deal $37.61
Free shipping on orders over $50 - See Details


  • 1" digits displayed on Large LCD (3.1 x 2.4in/80 x 62mm)
  • provide simultaneous measurements of humidity and temperature
  • Memory with reset function stores maximum and minimum measurements
  • Measuring range: Temperature 14 to 140°F (-10 to 60°C)
  • Humidity 10% to 85% RH
  • Accurate to 6% RH, 1C, and 1.8F (@ 0 to 50C/32 to 122F)
  • C/F switchable temperature measurements
  • Low battery indication

Essential Info

Big Digit Hygro-Thermometer measures Humidity from 10 to 99%RH and Temperature from 14 to 140 degrees F (-10 to 60 degrees C). It features a dual display with 1 inch digits and a Min/Max with reset function.

Measures surrounding temperatures and relative humidity electronically and displays in a large LCD. This is the perfect digital humidistat for any humidifier or dehumidifier.


What's Included

  • Digital Hygro-Thermometer
  • Built-in Tilt Stand,
  • Wall Mounting Bracket
  • 1.5V AAA Battery
  • Specifications

  • Max/Min with reset function
  • Humidity: 10 to 99% RH
  • Temp: 14 to 140F or -10 to 60C
  • Dimensions: 4.3 x 3.9 x 0.78in (110 x 100 x 20mm)
  • Weight 6oz (169g)

  • Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Extech Instruments Corp, Tel: (781) 890-7440 Ext 200



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