Product review (5 stars): Great buy, I own 5
I now own 5 of these now and are all used in my many cigar humidors. I put them all through the salt test and they have all been spot on even more so than my other far more expensive units. Big numbering make it easy to read through my glass top humidors yet are still small enough not to take up precious real estate. they are not sturdy but they don't need to be and they come with a battery so at this price I don't see myself buying any others ever again.