GRI 4400 Industrial Surface Mount Switch Set, Standard Gap, Closed Loop

Heavy duty surface mounted industrial grade contact designed for securing chain link gates, overhead garage doors, safes, and walk-in freezer doors. Features weather resistant rugged aluminum housing that operates reliably between -40°F and 257°F. Includes 36" 2-conductor vinyl jacketed cable with closed loop configuration. Built-in E.O.L. resistors and diodes available upon request, along with optional supervisory loops and spacers. Complete kit includes all necessary hardware, mounting brackets, and detailed installation instructions. Backed by lifetime warranty.