Description CRSMKDET002C00 Return Air Smoke Detector – E:Mail: [email protected] to confirm availability or for volume discounts CRSMKDET002C00 – Return Air Smoke Detector Attributes Audible Alert NO Battery Backup NO Brand Carrier®, Bryant®, Payne® Country of Origin USA Cubic Measurement 0.1389 Cycle/Hertz 50/60 Hz Dimensional Weight 2 Display NO Hush Button NO Interconnection Capability NO Locking Pin NO Mounting Type 48/50A Units – install in the predrilled holes located in the indoor section above the auxiliary control box; 48/50P Units – install on the upright in the power exhaust section OPT Code 1PCRSMKDET002C00 Operating Temperature Range 32°F to 131°F (0°C to 55°C) Power Source Hard wired Prop 65 YES Sensor Type Photoelectric Test Button NO Tier Standard UPC See Optical Visual Alert NO Voltage 24 VAC