System Sensor HGWL-LF L-Series Indoor Low Frequency Compact Sounder, 2-Wire, Wall Mount,

The L-Series offers the most versatile and easy-to-use line of low frequency sounder and low frequency sounder strobes in the industry. With white and red plastic housings, listed for wall and ceiling mounting, L-Series Low Frequency can meet virtually any application requirement. The low frequency sounder and low frequency sounder strobes were designed to address the NFPA 72 sleeping space requirements that require a low frequency notification appliance that operates within frequency range of 520 Hz ± 10% and is of a square wave tone. Like the entire L-Series product line they include a variety of features that increase their application versatility while simplifying installation. All devices feature plug-in designs with minimal intrusion into the back box, making installations fast and foolproof while virtually eliminating costly and time-consuming ground faults. To further simplify installation and protect devices from construction damage, L-Series uses a universal mounting plate with an onboard shorting spring, so installers can test wiring continuity before the device is installed. Main Features 520 Hz ± 10% square wave tone, NFPA compliance Full candela range plus High/low tone options to optimize current draw for a wide variety of applications Compact and standard, and round ceiling options Field-selectable candela settings on wall units: 15, 30, 75, 95, 110, 135, and 185 Rotary switch for high and low, temp 3 and temp 4 settings Plug-in design with minimal intrusion into the backbox Mounting plate shorting spring checks wiring continuity before device installation Electrically compatible with legacy SpectrAlert and SpectrAlert Advance devices Updated modern aesthetics Compatible with MDL3 sync module Show More Show Less