Never wonder if your digital hygrometer is accurate!
The HygroSet II is the first digital hygrometer of its kind capable of being adjusted after calibration. Each click of the adjustment knob changes the humidity display (+ / -) by 1%.
Easy-set calibration Instructions.
Humidity accuracy +/- 2% at 65% to 75%
Temperature accuracy +/- 1 degree (displayed in Celsius or Fahrenheit)
10 Second refresh rate
Button cell battery included
Note: The HygroSet II round is not compatible with exterior mount humidor models