Product parameters:
1. The functions of the host and the slave: temperature measurement, high temperature alarm, low temperature alarm
2. Indoor temperature range: 0-60 degrees Celsius
3. Outdoor temperature range: minus 40-60 degrees Celsius
4. Accurate temperature value: 1.0
5. Power supply: Main unit: No. 7 battery x 2, Sub-machine: No. 5 battery x 2 (delivery without battery)
6. Wireless range: 100 meters without interference
7. Net weight: 138 grams

caveat:
1. Do not install reverse battery positive and negative poles
2. Avoid direct rain on the wireless transmitter

Outdoor installation method:
1. Note: In order to receive the true temperature value, you should avoid installing the sensor directly in the sun; we recommend that the remote sensor be installed on a wall facing north outside. Before installing on the wall, first order a screw and leave the screw head 5mm, then install the outdoor sensor on the screw
2. The electronic part of the outdoor sensor has a layer of moisture-proof synthetic resin to protect the circuit; but the sensor is not waterproof, so you should avoid direct rain
4. Product with hook