Explanation: Large character LCD display; Multifunction; Low power consumption; High stability and accuracy. Display temperature, humidity and time Memory maximum and minimum measurement values; 12-hour/24-hour display system °C/ ° F unit selection; Clock and calendar functions (month and date) Desktop or wall hanging, easy to place   Product specification: Temperature range: -50 to +70°C (-58 to +158° F) Humidity range: 10% - 99% RH (relative humidity) Temperature Resolution: 0.1°C (0.1°F) Humidity Resolution: 1% RH Temperature control accuracy: ± 1°C (1.8°F) Humidity accuracy: ±5%RH (40%-80%) Power supply: 1.5V * 1 (AAA type) (send battery) Equipment size: 105 * 98 * 24 mm Equipment color: white Equipment weight: 114g Package Weight: 150g Package size: 175 * 128 * 34 mm Operation method: 1. Push the battery door open according to the direction of the back of the machine, remove the battery separator, and then replace the battery door. The machine can be used. 2. Key function: (MODE) Switch clock and alarm display mode / set current time, alarm clock, 12 or 24 hour clock, date (ADJ) adjust the value of the set item; (MEMORY) display memory in the highest / lowest temperature Humidity value / maximum/lowest humidity value of clear memory; (°C/°F) Switching temperature unit is displayed in °C (degrees Celsius) or oF (Fahrenheit); (RESET) Clears all set/memory values and returns to the initial state. 3. Press and hold (MODE) for 1 second in the initial state. The current time starts flashing. Press (ADJ) to adjust the number of minutes. Press (MODE) continuously to set “CLOCK” and “12/24” respectively. , "Month (M)", "Day (D)" 4, in the current clock mode, (clock between the two points between the clock and the second flashing) switch to display the alarm mode (clock and minutes between the two points do not flash), press (ADJ) to switch The "Alarm" function / "tick hour" () function on and off, and then hold down (MODE) for 2 seconds, you can set the alarm time, and start the "Integral hour" function, () symbol appear. 5. In the alarm mode, if there is no operation, it will automatically return to the current clock after one minute. At this time, press (ADJ) to switch to the calendar display. After 3 seconds, it will automatically return to the current clock. Press the MAX/MIN button to display the temperature/humidity. The maximum value since CLEAR. 6. Press (MEMORY) to display the memory temperature/humidity maximum (MAX) and minimum (MIN). Press and hold (MEMORY) for more than 2 seconds to clear the memory maximum/minimum value. Precautions: 1. Press (RESET) (behind the machine) when using/changing the battery for the first time; 2, if the aircraft appears any bad, please press (RESET) 3, put the battery back to the government designated place after use [Adequate indoor temperature and humidity environment in summer] The optimum indoor temperature in summer is 23°C to 28°C, and the humidity is 30%RH to 60%RH. Most people in this area feel comfortable. In the air-conditioned room, people feel most comfortable when the room temperature is 19°C to 24°C and the humidity is 40%RH to 50%RH. If we consider the influence of temperature and humidity on human thinking activity, the optimal indoor temperature should be 18°C, and the humidity should be 40%RH to 60%RH. At this time, people's mental state is good and their thinking is most agile. Suitable winter indoor temperature and humidity environment The winter temperature is 18°C to 25°C, and the humidity is 30%RH to 80%RH. In winter, when the indoor humidity is too high, it will accelerate the heat conduction and make people feel cold and depressed. When the humidity in the room is too low, the water in the mucous membranes of the upper respiratory tract is lost. People will feel thirsty and are prone to catch a cold. If the humidity is not enough, it is best to use the humidifier in time Little knowledge about temperature and humidity sensors As with the measurement range, the measurement accuracy is the most important indicator of the sensor. Each increase of one percentage point. For the sensor, it is the last step, even the last one. Because to achieve different accuracy, the manufacturing costs vary greatly, and the price difference is very far. For example, an imported low-cost humidity sensor is only a few dollars, and a full-humidity humidity sensor for calibration is several hundred dollars, a difference of nearly 100 times. Therefore, users must tailor their clothing to avoid blindly pursuing “high, fine, sharp”.

Special reminder: Because it is a foreign trade product, there are only English manuals at random, so please pay close attention to the above instructions for use.