System Sensor B402B Detector Base
$50.00
The System Sensor plug-in detector base B402B is intended for use in 4-wire systems, with screw terminals provided for power, remote annunciator, and relay contact connections. These bases also contain a resistor to provide current limiting in the alarm state.
The B402B is used with System Sensor model 2451 and 2451TH photoelectronic detector heads, and model 1451 ionization detector head.
