This product is designed with all domestic electronic components. The main control MCU and sensor support ultra-low power consumption. In addition, a three- acceleration sensor is added for vibration detection to achieve screen sleep or wake-up, further effectively reducing product power consumption Ultra-long battery life: Laboratory tests show that 150mA lithium batteries can work continuously for more than 6 months; Temperature and humidity calibration: It has been integrated into the software algorithm, and users do not need to perform secondary operations, which is simple and convenient Lithium battery rechargeable: With intelligent charging management chip (it is recommended to fully charge the first time, and the charging process is also the process of automatic calibration of the product. Data fluctuations are normal) High : Temperature Sensor ±0.3℃ Working Range: -40~125℃. Humidity Sensor ±2%RH Working Range: 0%RH ~100%RH Precautions for use: 1. Do not place the product in a high dust environment (it is easy to block the sensor detection window, causing inaccurate detection data); 2. Do not use the product under direct sunlight; 3. Pay attention to waterproofing during use. Electronic products may be short-circuited and when exposed to water Color: Black Material: PCB Package Contents: 1 * Thermohygrometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.