Features: Accurate Display--Our rechargeable aquarium electronic thermometer accurately measures temperatures ranging from -9.9 to 50℃. The LCD screen displays the water temperature, visible for up to 30 seconds. Enjoy clear readings in day or night. LED Screen--Equipped with a LED screen, whether it's day or night, you can easily read the temperatures. The cordless design ensures a clean and safe environment for your fish. Versatile Usage--Maintain the living conditions for your pets by adjusting the temperature accordingly. Whether you are a fish enthusiasts, reptiles lover, our thermometer is an essential tool for ensuring their enviroment. USB Rechargeable & Energy saving--With its energy saving and low consumption design, the battery life is significantly extended. Say goodbye to frequent battery changes and enjoy a longer lasting thermometer Specifications: Material: ABS+Electronics Size: Approx.5cm/1.97inch Package Includes: 1x Aquarium Thermometer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.