Features 1、High accurate measurement: This wireless electronic thermohygrometer adopts high accurate sensor, which can accurately measure indoor and outdoor temperature and humidity, and provide accurate data so that you can understand the actual situation of the environment. 2、Multi Functional Design: The wireless electronic thermohygrometer can be used for various indoor and outdoor occasion, and can measure indoor and outdoor temperature and humidity at the same time, making it easy to understand the situation of different environments and convenient for your life and work. 3、Wireless Sensor: The wireless electronic temperature and humidity meter is equipped with a wireless sensor, easy to operate, convenient to carry, and can monitor the temperature and humidity changes at any time and anywhere to avoid abnormalities. 4、One Machine With Multiple Monitoring: The wireless electronic thermohygrometer with three remote sensors, can monitor the temperature and humidity of multiple locations, convenient for you to understand the situation in different locations, to meet a variety of needs. 5、Intelligent Record: The wireless electronic temperature and humidity meter can automatically record the current highest and lowest temperature and humidity values, and update the data in time, so that you can keep track of environmental changes and improve your life and work efficiency. Specifications Item Type: Room Hygrometer Thermometer Material: ABS Weight: Approx. 363g / 12.8oz Outdoor Temperature Range: -40-60 Degree Celsius Indoor Temperature Range: 0-60 Degree Celsius Temperature Accuracy: ±1 Degree Celsius Humidity Range: 10%-99% Humidity Accuracy: ±5% Frequency: 433 MHz Update Rate: 60 Seconds Open Transmission Distance: 100m Power Requirements: Host: 4 x AAA (Excluded) Remote Sensor: 2 x AAA (Excluded) Package List 1 x Room Hygrometer Thermometer 3 x Remote Sensor 1 x Instruction Manual