Are you looking for a professional, yet affordable mini thermometer? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further Our professional mini thermometer must meet you needs. It is one of the best choices for you. Features - Color: White, Black. - Material: Plastic. - Size: About 5x5x3cm /1.97x1.97x1.18inch. - Temperature measurement range: -50110. - Operating temperature: -5-50 (display). - Operating humidity: 5%80% - Working voltage: 1.5V 2 button batteries. - Temperature sampling period 2 seconds optional (default is 2S). - Temperature error: plus or minus 1 degree at room temperature. - Lightweight and easy to be carried out. - With waterproof probe, it is suitable for fish tank use. - Can be used to test the temperature of refrigerator. - Digital display make the temperature reading more easily.