SPRK Datasheet PDF - Systemsensor advanced ideas.

Features
• Plug-in design
• Electrical compatibility with legacy SpectrAlert products
• Shorting spring on mounting plate tests continuity before installation
• Rotary switch simplifies field selection of speaker voltage (25 and 70.7 Vrms) and power settings (¼, ½, 1 and 2 watts)
• Universal mounting plate for wall- and ceiling-mount units
• Weatherproof per NEMA 4x, IP56
• Compatible with System Sensor synchronization protocol
• Automatic selection of 12- or 24-volt operation at 15 and 15/75 candela
• Field selectable candela settings on wall and ceiling units
• Ceiling and wall mount application