KR1201A 12V 1-Channel 433MHz Wireless Remote Control Relay Module Learning Code

The KR1201A 12V single-channel 433MHz wireless remote control relay module is a learning-code receiver designed for convenient on/off switching of electrical appliances, lighting systems, garage doors, and electric shutters. Operating at a 433MHz RF frequency with a 12V DC input, the receiver provides stable performance over a control distance of 20 to 40 meters. Its learning-code function allows new remote transmitters to be paired directly to the receiver memory without complex wiring changes. The onboard relay supports a 10A output current, making it suitable for controlling 220V electrical devices within its rated load. Standby current is below 5mA, and receiver sensitivity exceeds 90dBm, supporting reliable signal reception. The module supports multiple working modes, including self-locking (toggle) and interlock (latching), which can be configured according to the application. Measuring 35mm × 30mm, the compact receiver board is supplied with a matching plastic enclosure for straightforward installation in control boxes and automation panels.