Digital aquarium thermometer for saltwater freshwater fish tanks, amphibians and reptiles. Key Features: • Included: 1x Thermometer ◦ 2x Button batteries (1 Installed, 1 Spare) ◦ 1x User Manual • External aquarium thermometer adopts an advanced smart microchip and an aluminium alloy sensor, which can accurately measure the temperature of different types of water such as freshwater and saltwater • Suitable for monitoring the living temperature of fish, lizards, turtles, and other reptile tanks • A transparent screen prevents blocking the aquarium view • The thermometer does not need to connect with wire, it makes your setup look a lot neater and cleaner • Press the ‘SET’ button to switch between Celsius and Fahrenheit • The battery is placed on the front of the unit, no need to peel the thermometer off • Temp measurement range: 0℃~70℃ • Temp measurement tolerance accuracy: ±0.5℃ • Temp accuracy: 0.1℃ • Power supply: 3V CR2032*1 • Colour: White/Blue • Size: Large • Material: Plastic • Made in: China • Dimensions (HxWxD): 9.5x9.5x0.2 cm • Weight: 0.3 kg • Manufacturer's Warranty: 1-year Warranty.