SONOFF 4CHPROR3 4-Channel Wifi Controller User Manual
This user manual provides detailed instructions for the 4CHPROR3 and 4CHR3 4-Channel Wifi Controllers manufactured by SONOFF TECHNOLOGIES CO., LTD. The devices can be controlled remotely via Wi-Fi and RF connectivity using the eWeLink app. The manual includes wiring instructions, device pairing, and product usage information.