Extech 445580 Humidity/Temperature Pen is Compact, Digital Hygro-Thermometer, ideal for field use.
- Simultaneous display of Temperature (Deg.C/Deg.F) and Relative Humidity.
- Max/Min and Data Hold
- Built-in self calibration utility allows for field calibrations using optional Relative Humidity calibration bottles
- Includes meter with pocket clip and 3V lithium battery