1. 8 Channel Radio Control Each channel operates independently, ideal for complex industrial control applications such as cranes or hoists. 2. Security Scroll code encryption and FSK demodulation ensure reliable signal transmission without interference. 3. Compatible with AC 220 V / 380 V Suitable for a wide range of industrial systems with voltage supply. 4. Easy Setup Learning mode erase function allow you to quickly learn and remove remote controls. 5. Heavy Duty Design Housing designed for industrial use, also works at 20 to 70 °C ambient temperature. 6. Click ModePress one button of the remote control the relay will be activated. Release the button the relay will be disabled. The buttons 'Up', 'Down', 'East', 'West', 'South' and 'North' of the remote control all work in point mode (touch operation). 7. Extended Click Mode: Press the stop button of the remote control once to lock the output signals of the controller. Then press the ON button to activate the relay. Press the ON button again to remotely control the eighth relay channel of the controller. 8. Relay Control Instructions: When the controller receives a signal from the remote control, the corresponding relay on the controller board will be activated.