Size: 105*58*43mm
Power supply mode: 7th battery
Sonoff PIR2 (433 infrared human body sensor, can be used with RF bridge 433, can realize APP alarm when someone passes in front of the sensor, through the scene can also set the alarm and linkage with other easy micro-switches)

The traditional 433 wireless remote control switch, rolling gate, etc. can be directly controlled by the mobile phone wifi by learning the remote control button, and the second is smart home!

RF can learn most fixed code 433 frequencies, dynamic code (rolling code) and encryption can not learn.

Remote control chip models that can support learning include but are not limited to: PT2260, PT2262, PT2264, EV1527, etc.

TV, air conditioner remote control is an infrared signal, does not support learning!