Securitron has excelled in product leadership starting with the first "E" profile magnetic lock in 1977, and moving to such products as the Touch Sense Bar, the first electronic electric lock releasing device utilizing the simple act of human touch. Innovation continues with Securitron's newer products. The BPS Series is the first Power Supplies to receive UL Class 2 rating with or without batteries. The SAM is the first shear type electromagnetic lock that utilizes no special timers or electronics to lock the door and the UnLatch® is the first motorized electric strike that can be installed in a 4-7/8" opening without damaging or altering the door frame - available for cylindrical and mortise locksets.