1、HD LED DISPLAY: Aquarium temperature gauge adopt LED screen to display temperature, LED can provide wide viewing angle and the color is saturated, which is easier to read the data no matter day or night. Green, environmental protection and energy saving 2、CORDLESS TOUCH DESIGN: Stick on induction temperature gauge sense 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 temperature gauge outside aquarium will enter the sleep state after 5s 3、HIGH ACCURACY DISPLAY: Aquarium tank temperature gauge just need to tear off the adhesive and stick below the water level on the outside of the tank. The temperature gauge for terrarium has a reading range of 0‑140℉ and is accurate to 0.9℉. Up to 5s refresh speed allow the eye to detect temperature changes more quickly 4、LONG BATTERY LIFE: The temperature gauge tank fish built in 3V battery button, the battery is long lasting. Mini design, easy for you to use 5、APPLICABLE SCENARIO: Digital temperature gauge 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 Item Type: LED Digital Aquarium Alarm Temperature Gauge Material: ABS Battery Type: 1 x CR2032 button battery Battery Capacity: 200mAh Temperature Alarm Range: Default high 34℃, low 15℃ Temperature Measurement Range: -10℃ ~ 60℃(14℉ ~ 140℉) Unit: ℃/℉ temperature switchable display 1 x Temperature Gauge