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Acurite: Pro Digital Indoor Temperature and Humidity Monitor with Backlight - 01139M

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Master your humidity levels with the AcuRite Pro Indoor Hygrometer and Thermometer. This monitor is equipped with a magnet for easy placement. This small humidity gauge is ready for plants, cigars, guitars, or whatever you need to protect from humidity. This digital humidity and temperature monitor combo is everything you need with enhanced accuracy up to 0.5% for temperature and 2% for relative humidity.


  • Enhanced Accuracy – Detects changes in temperature and humidity every 10 seconds
  • Backlight Function – Easily view temperature & humidity levels at any time, day or night
  • Multiple Mounting Options – Tabletop or magnet mountable design
  • Responsive Readings – Indicates current air conditions to ensure proper humidity control
  • Record High and Lows – Displays 24-hour and all-time record high and low readings
  • Area-Specific Monitoring – Calibrate the monitor for each room or environment in your house or office for the most accurate data


Indoor Temperature Range -4 to 158 degrees Fahrenheit; -20 to 70 degrees Celsius
Temperature Accuracy +/- 0.5 degrees Fahrenheit
Indoor Humidity Range 1% to 99% Relative Humidity
Humidity Accuracy +/- 2% Relative Humidity
Power 2 AAA alkaline batteries (not included)
Dimensions 3-inches Height x 2.5-inches Width x 0.875-inches Depth

Package Includes:

Digital Thermometer with Hygrometer and instruction manual
Part Number 01139M
Manufacturer AcuRite
Weight (KG) 0.050000
Packing Unit 1 Piece
Product Availability Available on Demand
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