Ziton SPB-2P is a POLAR WHITE, first fix plug in base for the ZP755 series sounders and sounders with visual indicators.
For use on Ziton ZP3 and Ziton ZP2 systems. If you are installing an addressable sounder of any kind (ZP755 devices) then you will need a Ziton SPB-2P to mount it on. All the wiring is terminated on these base units. The ZP755 devices are installed by simply clicking them in on top.