Product review (2 stars): Probably ok if the numbers are just FYI
Not very accurate. I have some very accurate ones I use in my humidor that are about double in price. Even after calibrating is 4% off. Has +/-2% advertised. Not good enough for me. But I guess you get what you pay for and if the numbers aren't that important and you're just curious what range you're in this may work for you.