Product review (1 stars): Temperature way off
I purchased this unit for the hygrometer, not the thermometer. However, when I first set up the unit the temperature seemed very low. I set it on my room thermostat, next to a third thermometer. This unit was consistently a minimum of six degrees lower than what the other two registered.

Humidity appears to be slightly off, maybe two or three percent. In my case that's insignificant enough as not to be a problem.

UPDATE: Avoid this seller. When I contacted them to return the unit it took three attempts and a threat to notify Amazon before receiving return information. I followed their instructions for return, via FedEx, almost a month ago (28 days) and after contacting them twice requesting the status of receiving a new unit have heard nothing. Complaint filed with Amazon today.

UPDATE II: Return was resolved after hassles.

UPDATE III: After writing this review the seller (Allergy Be Gone) contacted me directly to offer credit in exchange for removing my review. If you don't see many negative reviews of Allergy Be Gone that may be the reason why.