Cebek TL-31 is a powerful eight channel RF transmitter module with a range of approximately 300 metres for use with Cebek RF remote control receivers. Through the Certified radio frequency signal of 433.92 MHz. the transmitter will emit a coded signal to the receivers, allowing it to switch off or on the receivers relay. To personalise remote controls you have more than 13,122 combinations to select from, the required code is easily selected thanks to the DIL switch fitted on the PCB. Supplied with battery, case and antenna.