Feature:1. [HD Display] The fish tank thermometer has a HD display, which is intuitive, convenient, easy to read, and more convenient to operate in dark environments.2. [Waterproof] Aquarium thermometer is built with multi layer waterproof sealing rubber ring, which can truly achieve 360 degree waterproof.3. [Precise] Digital fish tank thermometer with 0.1 high accuracy probe, thermistor enamelled wire accuracy sensor, real time monitoring.4. [Multiple Applications] This digital aquarium thermometer has a wide range of applications, and is suitable for water plants tanks, fish tanks, seawater tanks, etc.5. [USB Power Supply] The fish tank thermometer has a USB power supply head, so you don't have to worry about sudden power failure.Specification:Item Type: Fish Tank ThermometerMaterial: Plastic, Rubber Ring.Package List:1 xFish Tank Thermometer1 x USB Power Supply Head