Fish Tank Thermometer Aquarium Thermometer Wireless Touch

The Aqua Blue DT-21 is a compact stick-on digital touch thermometer designed for fish tanks. It features an external mount design with a touch-activation button that lights up the screen to show the water temperature. [1]

Key Features

Display: Digital LCD screen with a touch-sensitive power/activation button.

Placement: Sticks to the outside glass wall of the aquarium, using a rear thermal sensor to read the temperature through the glass without needing to be submerged in water.

Operation: Pressing the touch button wakes up the display to show the current temperature reading briefly.