Condition: 100% Brand New Item Type: Aquarium Thermometer Material: ABS Plastic Color: As shown in the picture Size: Approx.5.5x4.6cm/2.2x1.8in Measurement Range: 0 to +50 Resolution: 0.1 Accuracy: 1 Weight: Approx.27g/1oz Battery: 1 x 1.5V button battery(Not included) Application: Suitable for fresh water tank, sea water tank, grass tank and other aquarium.1The aquarium thermometer is completely waterproof, you can put it in the fish tank, real?time monitoring of water temperature 2Very simple to operate, no instructions necessary, just use the battery, with no buttons to operate. 3Suction cup for ease of placement , just find the best spot in the fish tank, then attach the unit with the small suction pad which will keep the thermometer in place until removal is required. 4The temperature range is from 0+50, allowing you to use this aquarium thermometer in the majority of temperature conditions. 5Aquarium thermometer is an attractive but simple designed unit with no over?complicated controls. 1 x Aquarium Thermometer