Tlily - lcd Digital Thermometer Hygrometer Indoor Outdoor Temperature Humidity Meter and Sensor,A

Measurement temperature, the minimum memory/maximum temperature value. High temperature alarm (the temperature exceeds the preset value emit sound alarm), low temperature alarm (the temperature is lower than the preset value emit sound alert). Indoor temperature range:0°C -+60°C Outdoor temperature range:-40°C -+60°C Temperature accuracy:+/- 1.0 Power (host):2 x AAA battery(Not included) Power (sub-machine):2 x AA battery (Not included) Wireless range:100 meters without interference. warn: Do not install anti -battery positive and negative poles. Avoid direct rain in wireless transmitters. If the sensor signal connection is interrupted, long the key to remove the button for 3 seconds to restore the signal connection. How to install outdoor sensors: Note: In order to receive the real temperature value, the sensor should be avoided directly in the sun. We suggest that the remote sensor is installed of the outdoor north. Before installing , book a screw, leave 5 mm from the screw head,