Heavy Duty Receiver and Relay Assembly

These Modular Radio Receivers Are One Half Of a Two Part Remote Control System, They Operate As Ordinary On/Off Switches But They Also Respond to The Signals Of A Hand Held Transmitter The Other Half of The System, The Modules Are Designed for Indoor Or Outdoor Use, and Can Handle A Variety Of Switching Applications, By The Push Of A Button On The Face Of The Transmitter, The User Is Able to Turn On/Off The Connected Load (lights, Pump, Etc.) From Any Remote Location, Inside Or Outside Of The House, Safely And Conveniently, In Addition, A Single Transmitter Can Operate Up To Three Receivers And Is Able to "teach" Each Module A Different Code (Transmitter Model Rc939 Sold Separately).