Silent Knight SK-PTIR-W 23/12 the FS-400 strobes provide a

the FS-400 strobes provide a lower current draw which allows for more devices on a NAC circuit while reducing the number of external power supplies required

In addition to back up amplifiers each SIGA amplifier has an on board 1kHz tone generator that can activate in the event of input failure or if no back up amplifier is available

If the resulting signal from the photo-diode is above a pre-set threshold the LED emits two more bursts of light

providing exact detector locations

operation and maintenance

Silent Knight SK-PTIR-W 23/12 the FS-400 strobes provide aSK PTIR W Multi criteria detectors are addressable detectors incorporating PTIR detection principles. Advanced algorithms maximize the advantages of each sensor type creating a more robust detection strategy that rejects nuisance sources but still responds quickly to real fires. They are compatible with 5000 and 6000 Series addressable fire alarm control panels using SK protocol. Datasheet (Technical Specifications): Download SK PTIR W Datasheet (PDF)