Description MaterialThe electronic thermometer is compact and delicate, of good workmanship and adopted environment-friendly materials, sturdy and durable to use. Package included: 1 x Thermometer (without battery) Double Meter ProbesDual measurement probes for measuring indoor and outdoor temperature. LCD displayClear LCD display , Celsius 0026 Fahrenheit, time display function conversion function, convenient for your reading data and daily use. ApplicationWidely apply to refrigerator, kitchen air-condition, freezer, fish tank, home, office, car etc. Time and temperature function High precision, visual display. With time and temperature display function, easy to use and operate. Product Description Operation Instruction: 1 . Open the battery cover on the device. FSW is the function conversion key, IN indicates internal temperature display, Out indicates external temperature display. 2. At startup, after the full screen LCD displays 2 seconds, the LCD displays the current internal temperature. During the 2 second LCD display period, the function key will not change state. 3. If you continuously press the FSW function key for more than 4 seconds, the device will shut down, while the clock time will continue to count. 4. When the temperature is not lower than 70 (158) in the measurement, the LCD will display H () at the first point, if the temperature is lower than -50 (-58), the LCD screen will display L () first at the base of the dot. 5. If the battery power is insufficient, the LCD screen flashes at the frequency of 1Hz, at this time the measurement data is inaccurate, you need to change a new battery. / is the Celsius/Fahrenheit switch. 6. Time setting: (1) Press the FSW button to change the LCD display in time. (2) Setting the hour (HR button): add 1 hour by pressing, to 12, then count from 1. (3) Setting the minutes (MIN button): add 1 minute by pressing, to 59, then count from 00 A is the built-in sensor probe to detect the temperature of the door around. B is outside the sensor probe, place it where you need to measure the temperature, the LCD screen will display the temperature data.Products from LUOLV's store