This fish tank water temperature thermometer is durable for use, with the accurate probe design, can help you to measure the temperature of water or reptile terrarium. The LCD display screen allows you to read the temperature quickly and easily. Features - - Material: Plastic. - Size: 7.00X7.00X2.70cm;/2.75X2.75X1.06in; - Measuring range: -58 fahrenheit scale~158 fahrenheit scale/-50 degree centigrade~70 degree centigrade. - Power supply: 1.5V button battery (included). - Measurement accuracy: ±1 fahrenheit scale. - Widely used: specially designed for measuring indoor and water temperature in reptile box, fish tank, aquarium, and more. - Easy to install: you can choose to install the thermometer on your fish tank by clip or suction cup. - Easy to read: the LCD display screen is suitable for quick temperature reading, clear and accurate. - Probe sensor: the thermometer probe allows it to measure the water temperature precisely and quickly. - Adjustable unit: the button on the back allows you to adjust the temperature display between Fahrenheit and Celsius. Package list: 2 x Aquarium Thermometers (Battery Included) 2 x Suction Cups