TM803 Digital Thermometer Temperature Meter with Alarm Function Freezer Thermometer Test Tool for Medicine Cabinets, Aquariums

• 【Easy to Install】The digital fridge thermometer is light in weight and compact in structure, quick installation, no complicated procedures.
• 【with Long Cable】The external sensor of the temperature tester has a long cable to meet the requirements of long‑distance measurement, can bring you more convenience.
• 【Function】The digital freezer room thermometer has high temperature and low temperature limit setting alarm, Celsius and Fahrenheit conversion function.
• 【Stable Performance】The thermometer is made of high quality meterial, with good characteristics, high stability, and accurate test results.
• 【Wide Use】The refrigerator thermometer is practical, can meet your different needs, suitable for medicine cabinets, aquariums, and refrigeration industries.

How to Use: ALARMSET High and low temperature alarm setting key: 1. The alarm default value is ‑1℃ for high temperature (HIGH) and 4℃ for low temperature (LOW) each time a new battery is installed. Press the ALARMSET key for more than 2 seconds, the screen will show HIGH OUT high temperature setting (‑1.0℃). Press the ℃ / ℉ key number to increase the cycle by one degree every time until it reaches the high temperature value you need to set. 2. After setting the high point temperature, press the [ALARMSET] key again, the bottom point temperature of LOW OUT appears on the screen. To set (4℃), press the ℃ / ℉ key, and the number will decrease by one degree each time you press it until it drops to the low temperature value you need to set. 3. Press the ALARMSET key for the last time to complete the setting. Specification: Item Type: Thermometer Model: TM803 Material: ABS Power Supply: 1 x AAA1.5V (battery not included) Application: Temperature Test Special Function: TM803 Maximum Value / Minimum Value: √ High Temperature and Low Temperature Upper and Lower Limit Setting Alarm: √ Celsius/Fahrenheit Switching: √ Sampling Rate: 1 time/10s Long-Distance Measurement: The external sensor cable is 3 meters long Screen Size: Approx. 47x20mm / 1.9x0.8in Power Supply: 1.5V (AAA) (not included) Package List: 1 x Thermometer (Battery Not Included) 1 x Suction Cup 1 x Manual 1 x Double-Sided Sticker