Mini aquarium digital temperature gauge — compact, easytoread, and simple to install. Key benefits Fast visual monitoring: large digital display with clear numbers makes it easy to check water temperature at a glance without opening the tank. Simple, tool installation: peel off the backing and stick the doublesided adhesive to the smooth outer surface of your aquarium. Keeps fish safe: external mounting lets you monitor temperature continuously without disturbing the water or animals. Durable for aquarium use: designed with waterresistant and breakresistant properties for reliable performance in everyday aquarium environments. Features and attributes Function: digital water temperature indicator for aquariums; provides an instant numeric readout. Display: large, easytoread screen with clear digits so readings are visible from a distance. Attachment: doublesided sticker design—just peel and press on smooth glass or acrylic. Compatibility: suitable for external mounting on most smooth aquarium surfaces (glass or clear acrylic). Construction: built to resist breakage and withstand humid/wet aquarium surroundings. How it solves common problems Eliminates guesswork: gives a clear numeric temperature so you can adjust heaters or coolers precisely. Reduces stress on aquatic life: no need to insert probes or open the tank to check temperature. Saves time: instant readings prevent repeated manual checks. Practical use scenarios Tropical fish tank: stick the gauge to the outside of a 20–55 gallon glass tank to monitor heater performance and maintain stable temperatures for sensitive species. Breeding or quarantine tanks: keep continuous watch on temperature without disturbing newly hatched fry or stressed fish. Portable or temporary setups: attach to temporary tanks or travel containers to verify water temperature quickly during transfers or maintenance. What you should know Apply only to smooth, clean surfaces for maximum adhesion. Position the gauge on the outside of the tank where it makes good contact with the glass or acrylic to reflect water temperature accurately. Designed for external mounting; avoid submerging the unit. This compact, easytouse digital aquarium thermometer provides clear, continuous temperature readouts and fast, hassle installation, helping you maintain a stable, healthy environment for your aquatic animals.