Ness 101-157D Dual 600lb Magnetic Lock with advanced integrated door status monitoring function (DSMF) provides door opened/closed output in addition to the standard lock status monitoring function (LSMF).
101-157D is designed to meet fire and life safety applications by providing an auxiliary locking mechanism that has no moving parts to bind or wear out for trouble-free operation. Suitable for higher security areas within buildings with double-leaf doors.