Gentex Corporation GHLFR 27/02 once a security system is

once a security system is disarmed upon entry

Its mounting box ensures optimal efficiency

They are precision-timed to meet UL 1971 synchronization standards

this model is use with the signature series detectors and bases

Red indicates alarm

Gentex Corporation GHLFR 27/02 once a security system isThe GHLF is a high quality, low profile, low frequency audible appliance that offers a dependable audible alarm with a low current draw. The GHLF is ideal for any occupancy that requires notification appliances. The GHLF horn offers a 520 Hz square wave, temporal 3 tone. A jumper selection is available for normal or loud decibel tone. A temporal 4 pattern is available when used with the Gentex GTSM Synchronization Control Module. The GHLF is shipped