I’m a premium cigar smoker. In humidors we have to watch the temp and humidity on a daily basis. This is a picture of a Thermo/Hydrometer used for cigar humidors. They are VERY accurate. They will keep the hottest and coldest temp in memory. The meter will also keep hi and low humidity. You can switch from Fahrenheit tosulcus. They are razor thin. Battery operated. (No wires!) There is a magnet on the back with a fixable metal plate/sticker that you can sick anywhere. The only thing I can see bad is if you mist your BP, you might get water in the vents for the sensors. Other than that, I have not had a problem with them. Tell me what you think. Here is the link for the meter. http://www.famous-smoke.com/cigars/s...cfm/inum/17655