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providing precise location identification
making it suitable for replacement
System Sensor RF-FTX Replacement Filter Cover
an external audio riser connection
It uses a Remote Unit Interface (RUI) connection
Gentex GHLFW (904-0530-002) Low-Frequency Horn Silent Knight SK-RELAY providing precise location identificationGentex GHLFW (904 0530 002) Low Frequency Horn, 24VDC 520Hz Square Wave Audible, White Low Frequency Audible Signal The GHLF Series low frequency audible signal is a high quality, low profile, audible appliance that offers a dependable 520 Hz square wave audible alarm with industry low current draw. The GHLF is ideal for any occupancy that requires low frequency notification appliances. The GHLF horn offers a temporal 3 tone with a jumper selection to