Smoke Detector Plastic 4-1/2 L

Duct Smoke Detector Photoelectric Finish Plastic Duct Mounting Alarm Current 18mA @ 230V AC 190mA @ 24V AC 32mA @ 115V AC 68mA @ 24V DC Depth (In.) 2 1/4 in Height (In.) 4 1/2 in Length (In.) 13 1/2 in Width (In.) 2 1/4 in Ambient Temp Limits (F) 32 Degrees to 140 Degrees F Air Velocity (FPM) 100 to 4000 fpm Amps AC 10 A Humidity Range ( Percent RH) 10 to 85 Percent RH Non-Condensing/Non-Freezing Voltage 115V AC 230V AC 24V AC 24V DC