Review on Mini Digital Electronic Thermometer Hygrometer - 12 Pack for Indoor Monitoring in Humidifiers, Greenhouses, Gardens, Basements by Jody Hatfield

I liked their shape and weight. I would like to point out that the large numbers indicate humidity and the small numbers in the upper right corner indicate temperature. I didn't like that the time readings show a decimal fraction. You should only use an integer. This bothered me because when I received them all 4 devices had different readings. One deviates by 2 degrees. Who cares if the temperature was 75.1 degrees. I would have 3 with the same temperature. The rest deviate by 0.5 or 0.9 degrees. There is no way to calibrate them. That was to be expected for the price. The person who boxed it was at least able to make sure all 4 had the same readings.