{"product_id":"system-sensor-hgwl-lf-compact-low-frequency-wall-sounder-white","title":"System Sensor HGWL-LF Compact Low-Frequency Wall Sounder, White","description":"\u003ch2\u003eSystem Sensor HGWL-LF Compact Low-Frequency Wall Sounder\u003c\/h2\u003e\n\n\u003cp\u003eThe System Sensor HGWL-LF Low-Frequency Sounder is a compact white fire notification appliance designed for indoor wall installation. It produces a 520 Hz ± 10% square-wave tone for sleeping-space notification and operates from a nominal 24 VDC or full-wave rectified power source across a 16 to 33 V operating range.\u003c\/p\u003e\n\n\u003cp\u003eThe compact housing suits apartments, hotels, dormitories, healthcare facilities, and other applications where a smaller low-frequency wall sounder is preferred. Installers can select Temporal 3, Temporal 4, continuous, or coded operation along with high and low volume settings. Its plug-in construction also reduces intrusion into the electrical back box during installation.\u003c\/p\u003e\n\n\u003cp\u003eA universal mounting system incorporates a shorting spring so technicians can verify wiring continuity before attaching the appliance. The HGWL-LF is electrically compatible with legacy SpectrAlert and SpectrAlert Advance notification devices and works with supported SyncCircuit modules. System Sensor lists this model to UL 464 for fire-protective service and specifies a broad indoor operating temperature range.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e520 Hz Low-Frequency Tone:\u003c\/strong\u003e Produces a 520 Hz ± 10% square-wave signal for low-frequency fire notification applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Wall Design:\u003c\/strong\u003e Measures approximately 5.3\" x 3.5\" x 1.5\" for installations where a smaller notification appliance is desirable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Signal Patterns:\u003c\/strong\u003e Supports Temporal 3, Temporal 4, continuous, and coded operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh and Low Volume:\u003c\/strong\u003e Allows installers to select the appropriate audible output while managing notification circuit current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-In Construction:\u003c\/strong\u003e Minimizes intrusion into the back box and simplifies installation or servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuity Test Feature:\u003c\/strong\u003e An onboard mounting-plate shorting spring enables field wiring checks before device installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Compatibility:\u003c\/strong\u003e Electrically compatible with SpectrAlert and SpectrAlert Advance notification appliances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e System Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HGWL-LF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e L-Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Compact Low-Frequency Sounder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Type:\u003c\/strong\u003e Audible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Indoor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Wall Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Wired, 2-wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e 520 Hz ± 10%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaveform:\u003c\/strong\u003e Square wave\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTone Settings:\u003c\/strong\u003e Temporal 3, Temporal 4, continuous, coded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume Settings:\u003c\/strong\u003e High and low\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemporal 3 High Current Draw:\u003c\/strong\u003e 108 mA DC, 150 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemporal 3 Low Current Draw:\u003c\/strong\u003e 78 mA DC, 76 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemporal 4 High Current Draw:\u003c\/strong\u003e 111 mA DC, 151 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemporal 4 Low Current Draw:\u003c\/strong\u003e 80 mA DC, 76 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous High Current Draw:\u003c\/strong\u003e 111 mA DC, 151 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Low Current Draw:\u003c\/strong\u003e 80 mA DC, 76 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoded High Current Draw:\u003c\/strong\u003e 111 mA DC, 151 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoded Low Current Draw:\u003c\/strong\u003e 80 mA DC, 76 mA FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL Reverberant Sound Output, High:\u003c\/strong\u003e 80 dBA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL Reverberant Sound Output, Low:\u003c\/strong\u003e 76 dBA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eULC Anechoic Sound Output, High:\u003c\/strong\u003e 82 dBA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eULC Anechoic Sound Output, Low:\u003c\/strong\u003e 78 dBA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e Regulated 24 V DC\/FWR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage Range:\u003c\/strong\u003e 16 to 33 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSyncCircuit Module Operating Range:\u003c\/strong\u003e 16.5 to 33 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Terminal Wire Gauge:\u003c\/strong\u003e 12 to 18 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 32°F to 120°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity Range:\u003c\/strong\u003e 10% to 93% non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5.3\" L x 3.5\" W x 1.5\" D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Surface-Mount Back Box:\u003c\/strong\u003e SBBGWL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface-Mount Dimensions with SBBGWL:\u003c\/strong\u003e 5.4\" L x 3.6\" W x 3\" D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Compatibility:\u003c\/strong\u003e SpectrAlert and SpectrAlert Advance devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Sync Modules:\u003c\/strong\u003e MDL3R, MDL3RA, MDL3W, MDL3WA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListing:\u003c\/strong\u003e UL 464\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL File:\u003c\/strong\u003e S4011\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFM Approval:\u003c\/strong\u003e PR452768\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSFM:\u003c\/strong\u003e 7135-1653:0516\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Mexico\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":46717491511493,"sku":"SYS-HGWLLF","price":82.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/1-system-sensor-hgwl-lf_48af53f6-2371-4c0a-9075-a7f874ec5c0c.jpg?v=1786575364","url":"https:\/\/avlgear.com\/products\/system-sensor-hgwl-lf-compact-low-frequency-wall-sounder-white","provider":"AVLGEAR","version":"1.0","type":"link"}