Easy temperature monitoring Accurately display the water temperature in the aquarium. High-precision thermal technology allows instant temperature detection, making it easier to understand the water environment without complicated readings. Effortless temperature control The thermometer uses a special adhesive backing that peels off and attaches directly to the outside of the aquarium or other containers. No installation tools are required. Round patch design Ideal accessory for aquariums, turtle tanks, and more. The round patch provides a fashionable and practical way to monitor ambient temperature. Highly sensitive display Uses a colorful temperature sensitive bar to help you keep track of the water temperature. The intuitive display shows the current temperature with easily recognizable color markings, enabling easy monitoring and averaging; an indispensable tool for aquarium owners. Use scenarios - Daily monitoring in freshwater or marine aquariums to maintain stable temperatures for fish and plants. - Quick checks in turtle tanks and other reptile enclosures by placing the patch on the outside of the container. - Temporary setups or portable containers where outside placement avoids interior installation and tools.