Black powder coated steel housing proven to withstand up to 3,500 lbs. (1,587.6 kg) of force. Recommended for gates over 8 feet long and for installations where high winds are common. Stabilizes and secures the leading edge gate leaf in the closed or open position. Simple installation, wires directly to all Linear Pro Access/PRO swing gate operators. Battery back up provided by existing Linear Pro Access/PRO gate operator batteries. Fail secure system with keyed manual over ride release. Bolt on or weldable hardware included. NOTE: If used on other gate operator brands, lock requires 12 volt DC power source and a 12 Volt DC powered relay for questions consult factory.