NAPCO Fire Relay Module,2& Depth

Fire Relay Module; Marked Fire; Finish Smooth; Surface Mounting; Alarm Current -; Standby Current (uA) 0; Depth (In.) 2; Height (In.) 8; Length (In.) 8; Tube Length (Ft.) 1; Width (In.) 5-1/2; Duct Width (Ft.) 1 to 10; Ambient Temp. Limits (F) -13 to 150; Air Velocity (FPM) 0 to 2000; Voltage N/A; Includes N/A