Extech 445580 Humidity & Temperature Pen

Extech 445580 Humidity & Temperature Pen


The Extech Humidity & Temperature Pen is a compact, digital hydro-thermometer that simultaneously measures temperature and relative humidity.


  • Ideal for field use
  • Built-in self calibration
  • Data hold function
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Why Buy From Fondriest?


The Extech Humidity & Temperature Pen is a compact, digital hydro-thermometer that is ideal for field use. It features a dual LCD screen that simultaneously displays humidity and temperature measurements. The portable size and built-in self calibration utility makes field calibrations easy. The pen-style thermometer can measure relative humidity from 10 to 90% and temperature from 14 to 122°F (0 to 50°C). Advanced features include MIN/MAX, data hold, push-button calibration, and automatic power off.

Notable Specifications:
  • Sensor type: capacitance
  • Humidity range: 10 to 90%
  • Temperature (air): 14 to 122F (-10 to 50C)
  • Basic accuracy: +/-5%, +/-1.5
  • Maximum resolution: 0.1%, 0.1
  • Dimensions: 5.7"x1.2"x1" (145x30x25mm)
  • Weight: 2.3oz (65g)
  • CE: Yes
  • Warranty: 1 year
What's Included:
  • (1) Pen
  • (1) Pocket clip
  • (1) 3 V lithium battery
Image Part # Product Description Price Stock Order
Extech 445580 Humidity & Temperature Pen 445580 Humidity & temperature pen
Usually ships in 1-2 weeks
Extech 445580 Humidity & Temperature Pen 445580-NIST Humidity & temperature pen, NIST traceable
Usually ships in 1-2 weeks
Image Part # Product Description Price Stock Order
Extech RH300-CAL Calibration Kit RH300-CAL Calibration kit for 445715 & 445815
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