Compatible with 811LM

2-7/8" actual O

There will be a hole in the barbed arm to slide your 1-5/8” top rail through

Built-in latch down device

Fits right or left-handed gates

NEMA 4/12 Vehicle Loop Detector, 115V 84" Compatible with 811LMVehicle Loop Detector Outdoor Enclosure (NEMA 4 12) Watertight, oil tight enclosure with single 115VAC detector, wired to terminal block for field connection. OPEN only (all LiftMaster operators) or SAFETY HOLD OPEN only (operators with type B2, T, TS or T1 control wiring) when vehicle passes over loop wire. Requires a loop of wire embedded in the ground to connect to the detector. Requires 2 wire output connection to door operator and 115VAC power.