Color as shown. 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: CR2032 coin cell battery (included). Wireless design: No wire probe required, with high-precision temperature sensor on the back, can be directly attached to the outside of the fish tank. Touch screen: Touch the fingerprint button to brighten the screen, LED digital display, suitable for fish, lizard and turtle boxes. Wide compatibility: Accurately measures temperature of fresh water and salt water, ideal for monitoring living temperature of fish, lizards, tortoises and other reptiles. 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. Tips: The aquarium thermometer is not waterproof, please do not immerse it in water. Installation method: Place the thermometer directly in the area where temperature needs to be measured. Peel off the film and stick the thermometer below the waterline outside the bathtub. After standing for 10 minutes, the thermometer reading is accurate.