1. The temperature control is simple: With precision thermometers, you can instantly see changes in your aquarium's temperature. The accurate and easytoread display allows you to understand the power supply environment at a glance without complicated readings. 2. Easytouse temperature test: Simply remove the back, no additional installation tools required, attach directly to the outside of the aquarium or any other container. Enjoy convenient temperature measurement with the special selfadhesive back, making operation effortless. 3. Round patch: An ideal accessory for aquariums, turtle tanks, etc., with a stylish and attractive look. Feel the change in room temperature with the round patch—both beautiful and practical. 4. Temperaturesensitive display: The colored markings on the temperaturesensitive display of aquarium thermometers represent the temperature range. Multiple colors are used to indicate the current temperature, enabling simple average detection and education, making it an essential tool for every aquarium owner.