The electronic thermometer is compact and delicate, well made and suitable. Environmentally friendly material, solid and durable to use. Dual gauge probes for measuring indoor and outdoor temperature. LCD display, Celsius and Fahrenheit, time display function conversion function, convenient for your data reading and daily use. High accuracy, visual display. Easy to use and widely applicable for refrigerator, air conditioner, freezer, aquarium, home, office, car, etc. Product Description Description: The electronic thermometer is widely applicable for refrigerator, air conditioner, freezer, home, office, car, etc. High accuracy, visual display. LCD display and Celsius. Fahrenheit conversion function, convenient for your data reading and daily use. With time display function. Economical for use. -Technical Specifications: Timer display range: 1:00-12:59.Temperature range: -50C~+70C(-58F~+158F).Accuracy: +/-1C.Temperature above -20C. Resolution: 0.1C.Temperature below -20C resolution: 1C.Power supply: 1 x AAA battery (not included).Dimensions: about 118 x 30 x 28.5mm.Package weight: 50g.Operation instruction:1. Open the battery cover on the device, put the AAA battery into the right electrode. FSW is the function conversion key, IN indicates the indoor temperature display, OUT indicates the outdoor temperature display.2. At startup, the LCD screen (full screen) will display 2 seconds, LCD will display the current indoor temperature. During the period of LCD displaying 2 seconds, the function button will not change state.3. Continuously pressing the FSW function button for 4 seconds, the device will turn off, while the time continues to flow.4. When the temperature is not lower than 70 C (158 F) in measurement, the LCD will display H () in radix point first place, if the temperature is lower than - 50 C (- 58 F), the LCD will display L (F) in radix point first place.Package Contents:Package Included:1 x Thermometer (without battery).,"