Non-latching, non-handed exit sensor bar for use with electromagnetic lock to provide immediate, single-motion egress. Non-mechanical optical sensors require no adjustment and provide DPDT output contacts. A mechanical switch is also built-in as a redundant back-up release. Available in three standard lengths, easily cut in the field for custom width doors. Minimum travel, positive stops and metal end caps provide true vandal and wear resistance. Furnished with power transfer cable from door to frame. Not to be used with electric deadbolt locks.