The SPR Split-Phase Repeater is a small electronic device that is designed to enhance the communication
reliability between devices that use the Universal Powerline Bus (UPB™) method of communication (such as PulseWorx™ devices).
It is designed to be used in a typical residential 120/240VAC split-phase electrical environment. The SPR comes in both plug-in and wire-in models. The main purpose of the SPR is to increase powerline communication reliability by taking UPB™ messages transmitted on one phase (leg) of the electrical system and strongly repeating them on to the other phase (leg).
The SPR comes in both plug-in and wire-in models. The SPR-1 is designed to install in a suitable junction box and wire to two phases (circuits) and neutral of the circuit breaker panel.