Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included industrial2 Shape: Cylinder with a dome

Shape: Cylinder with a dome

You can buy an extra set of connectors to customize the strap to best suit your needs

Fastest gun zeroing and sighting system

please use your own if you can

All pictures are for illustration purposes only

Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included industrial2 Shape: Cylinder with a domeSeco Larm SM 4201 LQ Track Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included Seco Larm SM 4201 LQ Track Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, For Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included Key Features: Used for overhead doors in both industrial and residential