- Instant temperature detection: high precision thermal technology reveals temperature changes quickly, helping you keep your aquarium environment stable. Reads ambient temperature outside the water without complicated readings. - Easy to install and use: this thermometer uses a special adhesive backing that peels off and sticks directly to the outside of the aquarium or other containers. No tools or extra installation required. - Round patch design: an attractive, practical accessory for aquariums, turtle tanks, and terrariums. The round patch provides a neat, unobtrusive way to monitor ambient temperature. - Visual temperature monitoring: a colored, temperature-sensitive bar offers a quick, intuitive indication of current temperature, making it easy to track changes at a glance. - Compatibility and performance: designed for exterior mounting on glass or acrylic tanks; lightweight, durable, and simple to maintain while delivering reliable readings. - Practical use scenarios: - Freshwater or saltwater aquariums: monitor ambient temperature to support healthy fish and coral conditions. - Turtle tanks and reptile enclosures: ensure enclosure temperatures remain within safe ranges. - Educational or office displays: a straightforward tool to demonstrate temperature changes and basic thermal concepts.