The SK-Duct Intelligent air duct smoke detector is used with SK-PhotoR (included) for detecting smoke andproducts of combustion present in air moving through an HVAC air handling system. When smoke is detected in a duct, the unit communicates the condition to the IntelliKnight control panel. The panel, in turn, depending on programming and wiring, turns off fans, blowers, and other devices. The duct ousing allows for mounting of SK-Relay addressable relay module. Now there's even more power and flexibility available to the IntelliKnight family of products.
(Rectangular): 14.38 in (37 cm) Length; 5in (12.7 cm) Width; 2.5 in (6.6 cm) Depth
(Square): 7.75 in (19.7cm) Length; 9 in (22.9cm) Width; 2.5 in (6.35cm) Depth Weight: 1.6lb (0.73kg)
Operating Temperature: -4°F - 158°F (-20°C - 70°C)
Humidity: 0% - 95% (non-condensing)
Air Velocity: 100 to 4000 ft/min (0.5 - 20.3 m/sec.)
Electrical (using SK-Photo or SK-PhotoR):
Operating Voltage: 15-32 VDC
Standby Current: 300 Ã‚ÂµA @ 24 VDC max.
Alarm Current: 6.5 mA @ 24 VDC max (with LED on)