Velleman 8 channel rf remote control velleman k8058 this 8 channel rf remote control transmitter works with the 8 channel relay board k8056 order code 70 4182 the single channel rf receiver k8070 order code 70 4183 and the rx433 rf order code 70 4185 receiver module to remotely control real world applications with a range of up to 50m velleman k8058 8 channel rf remote control