Magnetic Door Holders are designed to hold doors open and release the door by remote switch or fire life safety command center activation.
SDC EH Series Magnetic Door Holder & Releasing Device
$89.60
ROFU, 8920 Series Floor Mounted Magnetic Door Holder w/Reset Button
$204.00
SDC 432K Key Reset Mushroom Button
$183.40
MPT17-12 Multi-Purpose Digital Timer, 12VDC
$59.00