DH series fire door holders are constructed of the finest materials and workmanship available. The door holder is made of durable die-cast metal powder coated finish.

Other features include standard dual voltage ac or dc inputs of 12 & 24V, 24 & 120V, and 24 & 220V models. While reducing stocking requirements, model 24120 draws a mere .020 ma. at 24VDC, lowering overall job costs. (in large installations the cost savings can be substantial).

Other feature: single or double coil floor mounting, surface mounting and direct wall mounting. No brackets are required. The DH series door holder offers a new installation technique using an adhesive template assuring alignment without secondary adjustment.