TD-01A 1.The aquarium digital thermometer uses an LED screen to display the temperature. The LED provides a wide viewing angle and saturated colors, making it easy to read the data both during the day and at night. It is also environmentally friendly and energy-saving. 2.The adhesive temperature sensor detects the water temperature through a probe and wireless design, eliminating the clutter of wires in the water and providing a clean and safe environment for the fish. The aquarium digital thermometer temperature is displayed by a touch button, and the thermometer outside the aquarium will enter sleep mode within 5 seconds.