Check the listing for details. 1100 LB Electric Door Lock Electromagnetic Magnetic Access Control System 4. Condition: New. Listed at 89.99 USD. Brand New Electromagnetic Door Lock Kit Build Your Own Keyless Entry1,100 lbs (500kg) Holding Force -- for highly secured entryComplete Kit: Electromagnetic Lock with Iron Plate, Specialized Power Supply, Push ButtonAdjustable Timer: Remains Unlocked for 0 to 15 Seconds After Pressing the Button Easy Installation: Only 4 Wires Needed (see picture of demo board)Instructions & Mounting Hardware IncludedIndoor or Covered Outdoor Use120VAC, Low Power Consumption, Continuous Duty (can be energized continuously for years)1-Year Replacement WarrantyShips from Boston, MA. You will be able to receive it in a few days. Money back guaranteed within 30 days upon delivery (Item can be returned for a full refund in as new condition, not questions asked.)