Our large volume buys of commodity cabinet plug-ins make WP Signal the equipment depot of choice for dozens of maintenance contractors and large municipalities. Our firm is a master state contract holder in California & Washington for several controller items. We stock hundreds of different cabinet assembly parts for modern controller units, as well as vintage models.
BIU & TS2 Power Supply
Conflict Monitor Units (CMU) & Malfunction Monitor Units (MMU)
Detectors & Isolators
Loadswitches, Flasher & Relays