SpectrAlert Advance horn strobes are rich with features guaranteed to cut installation time and maximize profits. Intended for full building notification as well as on the property ground, they produce a loud sound to notify occupants to evacuate the buildings; the strobe is intended to notify those that may have a hearing impairment. Features include a universal mounting plate with a preliminary snap-in feature to hold the product in place for the screw attachment, 11 field-selectable candela settings, and rotary switches to select horn tone and volume settings. Compatible with 12- or 24-volt systems. Model numbers with a ?K? suffix are outdoor products that are listed to UL 1638 and UL 464 for private mode evacuation. The outdoor products are rated from -40? F to 151? F (-40? C to 66? C) and have a NEMA 4X rating.Main FeaturesWeatherproof per NEMA 4X, IP56Listed to UL 1638 (strobe) and UL 464 (horn)Compatible with System Sensor synchronization protocol and legacy SpectrAlert productsField-selectable candela settings: 15, 15/75, 30, 75, 95, 110, 115, 135, 150, 177, and 185Automatic selection of 12- or 24-volt operation at 15 and 15/75 candelaRotary switch for horn tone and three volume selectionsHorn rated at 88+ dBA at 16 voltsRated from ?40?F to 151?FUniversal mounting plate with an onboard shorting spring that tests wiring continuity before devices are installedPlug-in design with minimal intrusion into the back boxTamper-resistant constructionListed for ceiling or wall mountingGeneral InformationName: System Sensor P2RK SpectrAlert Advance Outdoor Selectable Output Horn Strobe with Back Box, 2-Wire, Wall Mount, Standard CD, "FIRE" Marking, Red, Honeywell International, Inc, System SensorCategory: System Sensor, Fire, Fire Notification Appliances, Horn StrobesUPC Code: 783863028199Country of Origin: Mexico. Country of origin is subject to change.