Item Type: Aquarium Thermometer Material: ABS Size: Approx. 5.8x3.5cm / 2.3x1.4in Battery Type: Button Cell (LR44) (shipped with matching battery) Battery Capacity: 160mAh Functional Characteristics. Stylish appearance, small and compact, suitable for aquarium. H temperature conversion. Technical Parameters. Measurement Range: -50 +70. Resolution: 0.1 Accuracy: 11[Use] Immerse the probe into fish tank to measure the water temperature. (immersion probe only, do not immerse the thermometer in water) 2[Easy To Read] Fish tank thermometer with easy to use suction cup and easy to read LCD display temperature readings within 0. 1 C. 3[Functional Characteristics] Digital aquarium thermometer has stylish appearance, small and compact, H temperature conversion. 4[Technical Parameters] Measurement Range: ?50 +70 Operating temperature: ?10~ +50 Resolution: 0. 1. 5[Wide Application] Aquarium thermometer is suitable for water or high humidity environments such as aquariums or animal feeders, for different water types such as freshwater, tap water, brackish water and seawater. 1 x&nbspAquarium&nbspThermometer 1 x Suction Cup 1 x Button Battery&nbsp