DescriptionAll 400 Series ionization smoke detectors include a specially designed dual source, dual unipolar detector chamber design which will sense the presence of smoke particles produced by fast combustion as well as slow smoldering fires. This chamber exhibits increased stability, significantly reduces nuisance alarms, and provides better performance at higher air velocities.Features: • Ionization detector. Must be mounted to one of the B40X series bases listed in Mounting Base Guide. • Conventional. • Dual Source. • Dualunipolar detection chamber. • Fast combustion. • Increased stability. • 400 Series 1451. • Low standby current • Two visible LEDs “blink” in standby and provide a 360° field viewing angle. • Wide variety of mounting bases with built-in shorting spring. • Detector head plugs easily into base. • Built-in test switch. • Field sensitivity metering of detector to meet the requirements of NFPA 72. • Built-in tamper-resistant feature. • SEMS screws for easy wiring. • Optional recessed mounting. • Removable cover and insect screen for field cleaning. • Fike P/N 67-1025.
