B401

Conventional Detector Base

B401R

Special B401 Base with 470 ohm Series Resistor

WB-1AP-IV

Base Enclosure for Humid Environments, for use with Base Models: B501AP, B501, B401, B401R

SMK400E

Surface Mounting Adaptor Kit

300 Series Conventional Relay Bases

300 Series Conventional Relay Bases

DETB

A right-angle mounting bracket for Pertronic heat detectors