{"product_id":"system-sensor-hwl-lf-l-series-low-frequency-wall-horn-white","title":"System Sensor HWL-LF L-Series Low-Frequency Wall Horn White","description":"\u003cp\u003e\u003cstrong\u003eHWL-LF\u003c\/strong\u003e is a System Sensor L-Series low-frequency wall horn (sounder) with a white housing and no strobe. It sounds a 520 Hz ±10% square-wave tone to meet the NFPA 72 low-frequency requirement for sleeping areas and is listed to UL 464. The white finish suits interiors where a red device is not wanted.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e520 Hz low-frequency square-wave tone\u003c\/li\u003e\n\u003cli\u003eTemporal 3, Temporal 4, continuous or coded patterns\u003c\/li\u003e\n\u003cli\u003eHigh and low volume settings\u003c\/li\u003e\n\u003cli\u003ePlug-in design on a universal mounting plate with continuity-check shorting spring\u003c\/li\u003e\n\u003cli\u003eSynchronizes with the MDL3 module; electrically compatible with legacy SpectrAlert devices\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystem Sensor L-Series Low Frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDevice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLow-frequency sounder, wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e520 Hz ±10% square wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 dBA high \/ 76 dBA low (UL reverberant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. current (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e108–111 mA high, 78–80 mA low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16–33 V (24 V nominal), regulated DC or FWR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32°F to 120°F (0°C to 49°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–93% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire gauge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12–18 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.6 in L × 4.7 in W × 1.5 in D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL 464\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cp\u003eThis model has no strobe; for a white low-frequency horn strobe see the P2WL-LF. The SBBWL surface back box is optional, and a red housing is available as HRL-LF.\u003c\/p\u003e","brand":"System Sensor","offers":[{"title":"Default Title","offer_id":51562189488421,"sku":"HWL-LF","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7648\/4645\/files\/unnamed_e787c6ee-abfc-47b9-866a-36ed1ba8c1f0.jpg?v=1793438283","url":"https:\/\/fastalarm.com\/products\/system-sensor-hwl-lf-l-series-low-frequency-wall-horn-white","provider":"FastAlarm.com","version":"1.0","type":"link"}