Are you a stickler for accuracy? Then you'll love this affordably-priced digital hygrometer-thermometer with its own calibration knob feature. When used with a Humidipak 'One-Step Calibration Kit,' you can turn the knob to fine-tune the hygrometer, ensuring your cigars are kept at the right RH.
Bought a nice humidor and thought I would get one of these to show me what's going on. Put in a calibration PAC left it for two days. Shows the temp just fine but never has shown the humidity percentage. Would not recommended this product from my personal experience.
Purchased the HygroSet with my 1st humidor and it's dead on accurate. Well worth the money!!! buy one!!