Honeywell Ademco 958-2 Overhead Door Adjustable Magnetic Contact

Honeywell 958-2 Overhead Door Adjustable Magnetic Contact, SPDT Switch (Form C), Adjustable Magnet with L Bracket, 24" (61cm) Armored Cable is Standard, 2-3/8" (60 mm) Minimum Standard Gap

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

Honeywell 6160RF Custom Alpha Integrated Keyboard/Transeiver