Check the listing for details. Lockmaster LM176 Electric Magnetic Gate Lock for Swing Gate Opener Operators. Condition: New. Listed at 59.80 USD. •Part Number: LM176•Item Weight: 3 pounds•Product Dimensions: 11.9 x 3.2 x 2.7 inches•Item model number: LM176•Item Package Quantity: 1•Batteries Required?: No•Electromagnetic gate lock for electric lock LM176 for Lockmaster swing gate openers•Electric lock unlocks and locks gates automatically as they open and close•Lock size: 170MML x34.5MMH X21MMD, magnetic board size: 130MMLx32MMHx9.3MMD•Holding force : 280KG working current: 12V/300MA working temperature: -10 - +55C (14-131F) For added security. Unlocks and locks automatically as gates open and close. Recommended for gates over 7 ft. long. Ideal for animal enclosures or high wind areas. Compatible with any 12V or 24V gate opener systems. Features: Electromagnetic Lock unlocks and locks gates automatically as they open and close. Recommended for gates over 7 ft. long. Ideal for animal enclosures or high wind areas. Compatible with any 12V Swing Gate Openers.