JBL Aquarium Thermometer DigiScan Alarm (w/o batteries)

Digital aquarium thermometer that shows water temperatures ranging from 0 to 37 ° C in increments of 0.1 ° C. The preset alarm will flash when temperatures drop below 18 ° C or rise above 28 ° C. To set it up: simply insert the battery, peel off the protective film, and adhere the thermometer to the outside of a clean aquarium pane. The included 4-part velcro sticker allows for easy removal whenever needed. Accuracy is rated at +/- 1.0 °C. Battery required: 1 x AG10. Dimensions: 5 x 3.5 cm. The height of the digits is 1.8 cm, making it easy to read. Please DO NOT submerge the thermometer in water! The water temperature is accurately transmitted through the aquarium pane to the temperature sensor located on the back of the thermometer.