Fish Tank Digital Thermometer Accurate LED Display to 0.9F Black Product Details Product Dimensions : 1.89 x 1.89 x 0.47 inches; 0.63 ounces Item model number : ATDH-1 Batteries : 1 CR2032 batteries required. (included) Manufacturer : PAIZOO Country of Origin : China Brand: PAIZOO Special Feature: High Accuracy Color: Black Age Range (Description): Adult Included Components: 1*aquarium thermometer; 1*CR2032 Battery (included) Outer Material: ABS Plastics Display Type: LED Product Care Instructions: Not Waterproof Unit Count: 1.0 Count Power Source: Battery Powered HD LED Display: PAIZOO Aquarium Thermometer adopts LED screen to display temperature, LED can provide wide viewing angle and the color is saturated, it is easier to read the data no matter day or night. Green environmental protection and energy saving Cordless Touch Design: Stick-on Induction Thermometer senses water temperature through probe, cordless design, no messy wires in the water, providing a clean and safe environment for fish.Touch the button to display the temperature, and the thermometer outside aquarium will enter the sleep state after 5s High Accurate Display: Tank Thermometer Aquarium just needs to tear off the adhesive and stick it below the water level on the outside of the tank. The thermometer for terrarium has a reading range of 0-140 F and is accurate to 0.9 F. Up to 5s refresh speed allows the naked eye to detect temperature changes more quickly Long Battery Life: The thermometer tank fish built-in 3V battery button, the battery is long-lasting. Mini design, easy to use. Digital thermometer is suitable for different water types such as fresh water, tap water, salt water, sea water, etc., to provide the most comfortable water environment for your beloved pets