General description The AC 220V 30A 1CH 433MHz Wireless Remote Control Switch RF Relay Receiver is designed for easy use and installation. The transmitter and receiver are pre-paired and tested before shipping, allowing for immediate functionality upon installation. This remote switch is versatile and widely used in various applications, including industrial control and security systems. Technical specifications Max Load Current: 30A Working Frequency: 433MHz Remote Distance: Up to 164ft/50m (without obstacles) Buttons: 2 Encoding: Fixed code / EV1527 code Material: Plastic Measurement allowed error: +/- 1-3 cm Compatibility and accessories Package Contents: 3 Remote Switches, 6 Remote Controls Usage This remote switch can control various electric appliances such as lights, motors, and security alarms. It is suitable for use in industrial control, wireless security systems, and other applications requiring remote operation. Other information Wireless RF signal can pass through walls,