Seco-Larm E-941SB-600 600-lb Black Electromagnetic Lock, UL Listed safety-edge-transmitters-receivers load-bearing hinge along with a

load-bearing hinge along with a SureClose® 57 or SureClose® 108 closer

This complete kit includes the necessary hardware for installation on most garage door openers

10-call master intercom station

107725 Model 750 Operator

This is why they are referred to as "Insulation Testers"

Seco-Larm E-941SB-600 600-lb Black Electromagnetic Lock, UL Listed safety-edge-transmitters-receivers load-bearing hinge along with aThe E 941Sx series of electromagnetic locks is the ideal way to secure a door against unauthorized entry. When power is applied to the electromagnetic lock, it creates an extremely strong magnetic field. The electromagnet is strongly attracted to the steel armature plate which is mounted on the secured door. Once the electromagnet is deactivated, the secured door will function normally without any residual magnetism.