The 433MHz RF Receiver Module KL-CW11 is a compact, low-power wireless receiver designed for remote control and wireless data applications. Operating on the 433MHz ISM band, it is compatible with ASK/OOK modulated signals and is widely used in DIY electronics, automation systems, and wireless sensor networks.
With an operating voltage of 3.3V to 5V, the KL-CW11 works seamlessly with popular development platforms like Arduino, Raspberry Pi, ESP32, and other microcontrollers. Its high sensitivity (−105dBm) allows it to receive signals from distances up to 100 meters in open areas, ensuring stable and reliable communication in a wide range of environments.
The receiver outputs a clean TTL digital signal, which can be decoded by a microcontroller or RF decoder IC. Its simple pinout and compact design make it ideal for integration into wireless doorbells, alarm systems, remote lighting, garage openers, and IoT devices.
Whether you're building a wireless remote switch or adding RF control to your embedded system, the KL-CW11 module offers excellent performance at an affordable cost. It is commonly paired with 433MHz transmitters for bidirectional communication setups.
