Seco-Larm DH-171SQ Magnetic Door Holder Flush-Mount with Backbox, UL

The DH-171SQ from Seco-Larm is an UL Listed Magnetic Door Holder, designed for virtually any remote release applications, whether residential or commercial. Fail-safe operation, tri-volt coils, and adjustable armature plate allows easy flexible installation.

Features

• For use with closers to control the closing of residential, commercial, public area doors
• Adjustable reduces installation time adjusts alignment changes
• Low profile design
• Holding force – 33-lb (15kg)
• 3 voltages: 12/24 VAC/VDC, 120VAC
• Cast aluminum faceplate
• No residual magnetism release
• Built-in voltage spike suppressor
• Use closers