Security Door Controls 491 | Emergency Door Release, 2-Spdt, 10A, 3.5" W X 1.375" D X 5.5" H, Break Glass, Aluminum Rod, Blue Housing, With 3 To 28 Vdc 18 Milliampere Siren

Security Door Controls - 491 - Features

• Aluminum Rod Blue Housing with Easy to Read Activation Instructions Avoids Confusion with Red Fire Alarm Stations
• The SDC 491 May Initiate the Release of an Individual Door or All Doors on the Same Circuit
• The SDC 491 May be Mounted in a 2 Inch Deep Single Gang Back Box or Double Gang Box with Plaster Ring Cover
• The SDC 491 May be Surface Mounted
• With a 491-BB Surface Mount Back Box
• Made in USA
• Tech Info: UL