Feature:1. Waterproof electronic thermometer, product safety, accurate measurement, exquisite appearance, direct reading.2. Can measure the temperature of fish tank, refrigerator, airconditioned room, car inside and outside and baby bath water temperature.3. Small, lightweight and portable, convenient for carry and storage, widely compatibility.4. Can be used as a simple thermometer, metal probe can be clamped under the armpit or placed in the mouth, and the data can be read when the temperature is stable.5. Can quickly and accurately read the temperature in fish tank, ensure the healthy environment of your fish.Specification:Item Type: Aquarium ThermometerMaterial: PlasticColor: WhiteSize: Approx. 4.5x3x1.5cm/1.8x1.2x0.6inWeight: Approx. 31.0g/1.1ozBuilt-in Battery: Button Battery x2Battery Model: AG13Battery Capacity: 138mAh.Package List:1 x Aquarium Thermometer