This aquarium thermometer is made of , which can withstand the use. Features the premium and , which has high durability, not easy to deform. Fine workmanship, it ensures the practicality. Features - Color: Black - Material: ABS - Size: About 5.00X3.00X1.50cm/1.97X1.18X0.59inch - With large display screen and clear numbers, it is very easy to watch the data. - Apart from measuring the water in fish tank, it also can be used in pet box or indoor space for measuring the . - It is compact and practical, and won't take up too much space. - It is made of good material, fine workmanship ensure the practicality and durability. - Water-proof performance allows it easily measure the underwater without coming the water. Specification - measurement range: -50~70 ( degree centigrade) - Humidity measurement range: 10% ~ (RH) - measurement accuracy: 1 ( degree centigrade) - resolution: 0.1 ( degree centigrade) - Humidity resolution: 1 (RH) - measurement error: ±1 ( degree centigrade) - Humidity measurement error: ±5 (RH) - Battery: / button batteries - Rated voltage: .5V Package list: 1 x Embedded Thermometer