Built-in sensor: immerse the probe in an aquarium to measure the water temperature (just dip the probe, do not immerse the thermometer in water). Built-in sensor accurately records the temperature of the aquarium. Moisture-resistant: the LCD display thermometer is moisture-resistant and is not affected by the environment, so that accurate display and display are possible. High quality: the shell is made of high-quality plastic, environmentally co.ukiendly, anti-ageing and durable. Small and lightweight, easy to carry. Suction cup: With suction cup, it is easy to install on the wall of the fish container. The high brightness screen is clear and easy to read. Compact design for discreet use. Widely used: a water thermometer with waterproof probe and digital display is a good tool to determine the temperature in the aquarium, which cares for roast and shrimp fish and your favourite fish well.