This product is an upgraded version of 4ch PRO R2, 4ch PRO R3. This 4-way smart switch supports switching between three working modes.: Inching, interlocking, self-locking, and inching modes also support custom delays from 0.25 seconds to 4 seconds. You can use the mobile APP for remote control, and also support learning 433MHz wireless radio frequency remote control control. The main control board is independently powered and compatible 5 to 24V DC or 100 to 240V AC, each relay is a pure switch, no voltage output. Suitable for motors, remote controls, feeding, etc.
