Feature:1. To meet different needs, it is suitable for medicine cabinets, aquariums, and refrigeration industries.2. Light in weight and compact in structure, quick installation, no complicated procedures.3. The external sensor has a long cable to meet the requirements of long‑distance measurement.4. The thermometer has good characteristics, high stability, and accurate test results.5. With high temperature and low temperature limit setting alarm, Celsius and Fahrenheit conversion function.Specification:Item Type: ThermometerModel: TM803Material: ABSPower Supply: 1 x AAA1.5V (battery not included)Application: Temperature TestBasic SkillsRangeAccuracyInternal Temperature-10℃~50℃±1℃14℉~122℉±1.8℉Outside Temperature-50℃~70℃±1℃-58℉~158℉±1.8℉Special FunctionTM803Maximum Value / Minimum Value√High Temperature and Low Temperature Upper and Lower Limit Setting Alarm√Celsius/Fahrenheit Switching√Sampling Rate1 time/10sLong-Distance MeasurementThe external sensor cable is 3 meters longScreen SizeApprox. 47x20mm / 1.9x0.8inPower Supply1.5V (AAA) (not included).Package List:1 x Thermometer (Battery Not Included)1 x Suction Cup1 x Manual 1 x Double-Sided Sticker