Use Way: _x000D_ Put in the water tank that you want to measure. _x000D_ The indoor temperature and humidity display. _x000D_ Default celsius temperature. _x000D_ Product uses: _x000D_ (1) Measuring the Inner and Outer Temperatures of Vehicles _x000D_ (2) Measuring the temperature inside and outside the air-conditioned room _x000D_ (3) Measuring the temperature inside and outside the refrigerator _x000D_ (4) Measuring body temperature _x000D_ (5) Measuring the Water Temperature of Fishpond _x000D_ (6) Measuring the temperature of the baby's bath _x000D_ It can be used in many places. It's really convenient and affordable. _x000D_ Product introduction: _x000D_ 100% and high quality _x000D_ Type: Thermometer _x000D_ Main Color: Black/White _x000D_ Temperature Measurement Accuracy: 1.0 _x000D_ Relative Humidity Test Range: 5% -80% _x000D_ Humidity Resolution: 1% _x000D_ Humidity Measurement Accuracy: 5% (at Room Temperature 25 ) _x000D_ Display Resolution: 0.1 _x000D_ Display: LCD _x000D_ Power: 0.15 mW under Working Conditions _x000D_ Battery: 2x DC 1.5V LR44 Button Batteries (not Included) _x000D_ Temperature Measurement Accuracy: 1 _x000D_ Features: Room Indoor Thermometer Hygrometer Tool, with Built-in Probe _x000D_ Size: 4.7cm x 2.7cm x 1.3cm/1.85" x 1.06"x 0.51" (Approx.) _x000D_ Note:Button Batteries are not included _x000D_ Notes: _x000D_ Due to the light and screen setting difference, the item's color may be slightly different from the pictures. _x000D_ Please allow slight dimension difference due to different manual measurement. _x000D_ Package Includes:1 x Thermometer