PCR module is used as wired remote communication and can be used for building control with high voltage power supply.
RS485 communication module is used as wired remote communication and can be used for building control with high voltage power supply, effectively reducing the interference of high voltage power supply to low voltage electrical appliances. 3 pairs of signal detection are communicated through RS485 serial port, and can be set arbitrarily through the code switch, which is easy to operate.

*3 pairs of signals are displayed locally synchronously
*Current 3A
*Isolation communication
*Strong anti-interference ability
*Standard RS485 serial port
*Two-way communication

Typical:
Air purifier building control.