Thermometer LCD Digital Temperature Meter Humidity Measurement Wired Probe Sensor for Refrigerator Aquarium Air Conditioner（Black）

General Description The digital liquid crystal thermometer is a compact and stylish device, made from environmentally friendly materials. It is designed to accurately measure indoor and outdoor temperature using its dual meter probes. This device is ideal for use in various environments such as refrigerators, air conditioners, aquariums and greenhouses. It offers a conversion function between Celsius and Fahrenheit, as well as a time display, making it convenient for daily use. Technical specifications Temperature range: -50°C (-58°F) to +70°C (158°F) Accuracy: ±1℃ Resolution: >-20℃ corresponds to 0.1℃, ≤-20℃ corresponds to 1.0℃ Time display range: 1:00-12:59 Installation Open the battery cover and install the battery 1 7 # into being careful not to install it upside down.Usage To display the indoor temperature, the screen will simultaneously display “IN”. To display the outside temperature, the screen will simultaneously display “OUT”. To set the time, press the FSW key to switch the display to the time, then use the HR and MIN keys to adjust the hour and minute respectively. If the temperature exceeds 70°C (158°F), the display will display H°C (°F). If the temperature is below -50°C (-58°F), the display will show L°C (°F). If the battery is low, the screen flashes at a rate of 1 Hz, indicating that the battery needs to be replaced.