System Sensor B401 Base, Two-Wire
Usually leaves our warehouse the same business day.
The SYSTEM-SENSOR-B401 is a 2-wire base for use with with System Sensorsmoke and heat detector heads.
The capability of plugging these detectors into a variety of special bases makes them more versatile than equivalent direct-wired models. The B401 base is intended for use in 2-wire systems, with screw terminals provided for power and remote annunciator connections.