OPEN only (all LiftMaster operators) or SAFETY/HOLD OPEN only (operators with type B2

This is Chain Link-Knuckle Knuckle 3-1/2' x 2" x 9 ga Commercial

cool white light can shine from all angles

Sensitivity: automatic

This is where the 3" barb wire arm comes into play

Passport MAX 3-Button Visor Remote Control Black-Tubing OPEN only (all LiftMaster operators)This Passport MAX remote control offers a unique credential ID when used with an access control system and is compatible with all 315MHz Security+ LiftMaster and Elite Gate Series Gate Operators and all LiftMaster Garage Door Openers manufactured since January 1995. All LiftMaster Openers, Operators, and Systems should be purchased through a Dealer and professionally installed. Connectivity Can operate up to three garage door openers or gate openers