Kit includes:

36 - 11170B - 5/16" x 1-1/4" Black Carriage Bolts

Inherent Reversing Sensor Detects obstructions or increased loads

Used to automatically open and close overhead doors

LA500PKGUL - LA500UL 24VDC Residential/Light Commercial Linear Actuator Package 8-1/4" Kit includes:LA500PKGUL Single Arm Package includes: 1 LA500DC Primary Actuator Arm 1 LA400CONTUL 24VDC Standard Control Box 1 LMRRUL Monitored Retro Reflective Photo Eye Info Security+ 2. 0 Safeguards access to property with an encrypted signal to offer extended range with Security+ 2. 0 myQ Securely control and monitor your Gate Operator from anywhere and get activity notifications through the myQ app P3 Motors LiftMaster has designed its own purpose built motor