The RLC-901 is a 3-channel remote light controller capable of controlling three separate channels of mains lighting from up to 150m away. The device includes two keyfob-style radio transmitters, each featuring three buttons. Outputs 1 and 2 feature a toggle action (press button once to turn the output on, press again to turn off) and output 3 features a timed output variable between one and four minutes.

The RLC-901 comes in two parts – the antenna unit and the main controller box. They can be mounted up to 50m away from each other and are connected together with ordinary double-shielded 75 ohm satellite cable (not supplied). Each end of the cable can be terminated with the supplied 'F' connectors.