Check the listing for details. Lockmaster LM176 24V Electric Magnetic Gate Door Mag Lock Swing Gate Opener. Condition: New. Listed at 59.80 USD. Part Number: LM176-24v 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: 12/24V 500/250ma. working temperature: -10 - +55C (14-131F) Lockmaster LM176 12/24v compatible with circuit board integrated automatic voltage and time adjustment 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 or 24v Swing Gate Openers.