The M32 electromagnetic lock is ideal for traffic control in high-use areas within secured or monitored perimeters. With unsurpassed durability, the M32 will last long after most buildings wear out. Applications include storage areas, rooms, and hallways where reliability, high durability and low-maintenance are required. Ultra-secure collapsing blind nuts mount to the door frame for strength and reliability. Fully sealed for weatherproof operations. 10 ft. [3.05m] of jacketed, stranded conductor cable. Automatic dual-voltage.Instant release circuit with no residual magnetism. Noise suppression with included MOV. Efficient, low power usage. Rust resistant - all ferrous metal surfaces plated for durability. Magnalock: 8"L x 1-5/8"D x 1-7/8"H Strike: 6-1/4"L x 1/2"D x 1-5/8"H. Operating Temperature:-40 to +140F [-40 to +60C] Indoor or Outdoor use.