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Digital Aquarium Thermometer LCD Screen Sensor 😺
Highest/ lowest temperature alarm function (Default setting: highest 28℃; lowest 18℃). Setting the random temperature alarm range. Temperature unit ℃/℉ changeable. LED alarm indicator light. Temperature Range: -40℃~+70℃ (-40℉~ +158℉) Power-supply: 1.5V (AG10) x 1(Battery is not included)
Operations: Open battery compartment cover, put on the battery and the cover, then the meter starts to work. Button function: (SET) set the highest & lowest temperature alarm range. (+) increase the value of what is under setting. (-) decrease the value of what is under setting. (℃/℉) change temperature unit between Celsius (℃) and Fahrenheit (℉). In status of origin,Highest temperature alarm default setting is 28℃ ,Lowest temperature alarm default setting is 18℃. In status of origin, press and hold (SET) for 2 seconds, the value around "SET Hi." (The highest temperature alarm value) flashes, press (+)/(-) to increase/decrease the highest temperature alarm value; then press (SET) for one time, the value around "SET Lo." (The lowest temperature alarm value) flashes, press (+)/(-) to increase/decrease the lowest temperature alarm value; finally, press (SET) for one time to confirm the setting.