Condition: 100% Brand New Item Type: Thermometer Material: Plastic Color: As Picture Shown Product Length: Approx. 7cm/2.8in Product Width: Approx. 1.5cm/0.6in Weight: Approx. 20.0g/0.7oz Suitable Type: Aquarium, Fish Tank Battery Model: AG10/LR1130(Ship with Battery) Nominal Battery Capacity: 150mAh Use Environment: Outside of Fish Tank Battery Life: about one year Measurement Accuracy: +-1% Measuring Range: -50-70 1It is small in size and lightweight, which makes it easy to carry and convenient to storage. 2This small thermometer can accurately detect the fish tank temperature, real?time monitoring of fish tank temperature. 3Mini crystal temperature gauge, special designed for fish tank and aquarium. 4Do not throw into the water, stick it on the out side of the fish tank and do not affect the temperature measurement effect. 5The shell is made of quality plastic, durable and anti?aging, high brightness screen is clear and easy to read.1. Can not be thrown into the water, paste it on the out side of the fish tank, gently pull out the insulated battery sheet before use, the temperature will be automatically displayed. 2. The temperature difference between the wall of the fish tank and the inside of the fish tank is about one degree, but it does not affect the temperature measurement effect.1 x Thermometer