With its 1500 pounds of holding force, the Thunderbolt 1560 will address your security needs as well as your need for peace of mind. The unit features a slim line profile lock that is specially designed for in-swinging doors and is equipped with an exclusive tamper-resistant cover. The Thunderbolt 1500s dimensions are 2" x 2" x 13.1" (5.08 x 5.08 x 33.3 cm), with a 2 magnetic profile. Z-bracket and armature are included, and users can service the coil themselves. Choice of AC or DC operation.