color: blue Material: PP + electronic components Size: 5*2*1cm/1.97*0.79*0.39in Weight: 60g Temperature measurement range: 0-99 degrees Celsius Temperature measurement deviation: about 0.1 degrees Celsius Power supply: for CR2032 coin cell battery (included) describe: 1. Wireless design: no wire probe is required, and the digital thermometer with a high-precision temperature sensor on the back can be directly attached to the outside of the fish tank. The measurement temperature range is about 0-99 degrees Celsius, please note that there may be a deviation of 0.1 degrees Celsius. 2. Touch screen: touch the fingerprint button to brighten the screen, LED digital display, high-precision temperature measurement, used for fish, lizard and turtle boxes. 3. Wide compatibility: It can accurately measure the temperature of different types of water such as fresh water and salt water. Ideal for monitoring the living temperature of fish, lizards, tortoises and other reptiles. 4. Easy to use: tear off the peelable film and stick the thermometer below the waterline outside the bathtub. After standing for 10 minutes, the thermometer can read accurately. 5. Tips: The aquarium thermometer is not water, please do not immerse it in water. installation method: 1. Place the thermometer directly in the area where the temperature needs to be measured. 2. Peel off the film and stick the thermometer below the waterline outside the bathtub. 3. After standing for 10 minutes, the thermometer reading is accurate.