• Large, easy-to-read triple LCD displays % relative humidity, temperature, and dew point
  • % RH audible and visual alarms, with adjustable set points, alert when humidity exceeds set limit
  • Temperature: 14 to 140°F (-10 to 60°C)
  • Probe clips onto meter or extends on 18" (457mm) cable
  • Max/min with reset function
  • Rear calibration adjustment pot for humidity and temperature
  • NIST certification available and optional calibration standards
  • Complete with built-in stand, wall mount bracket, remote sensor, and 2 AAA batteries

What's in the Box

  • Built-in stand
  • Wall mount bracket
  • Remote sensor
  • 2 AAA batteries


The Extech 445815 hygro-thermometer humidity alert and dew point display features a large, easy-to-read triple LCD which displays percent relative humidity, temperature, and dew point. Audible and visual alarms with adjustable set points alert when the humidity measurement exceeds the set limit. A probe is included with the Extech 445815 hygro-thermometer that either clips onto the meter or extends on an 18" cable to capture "remote" readings.

Additional features of the Extech 445815 hygro-thermometer humidity alert and dew point display include a max/min with reset function and a rear calibration adjustment pot for humidity and temperature. NIST certification is available as are optional calibration standards.

Applications for the Extech 445815 Hygro-Thermometer Humidity Alert and Dew Point Display:

  • Summertime: Identifies and warns when conditions for mold growth exist
  • Wintertime: Identifies and warns when low humidity conditions for static electricity exist
  • Remote probe allows for measurements behind walls or in difficult to access locations
  • Air temperature and dew point temperature indicate where condensation my occur
  • Monitor conditions in laboratories, storage areas and other controlled environment settings
  • Ideal solution when traceable ISO calibrations are required by operating standards

In Stock

Part Number Price Available
$213.66 1 in stock

Manufacturer Stock

This stock is typically available to ship in 3 - 5 working days.

Part Number Price Available
$69.29 50 in stock

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 3-5 business days". Click here to select options