Check the listing for details. Adams Rite 7440-628 UltraLine AR Deadlatch or Cylindrical Latch Electric Strike. Color: Gray, Condition: New. Listed at 209.99 USD. Electric Strikes for Adams Rite Deadlatches, Cylindrical LocksDesigned for use with Adams Rite deadlatches or cylindrical locksets with 1/2" [12.7 mm] to 5/8" [15.9 mm] latchbolt projection. For use in aluminum, hollow metal, or wood applications.Open electrically under 25 lbs [11.3 kg] of preload. Preload is pressure exerted on doors by air conditioning systems, warping or misaligned hardware which can disable common electric strikes.FunctionThis non-handed strike features an ultra-compact design and adjustable stainless steel keepers with over 1,500 lbs [680.4 kg] of holding force in fail secure mode. The strike releases electrically with up to 25 lbs of door preload. Single solenoid operates on 12/16/24 VDC power.Remote electrical control of narrow stile aluminum doors equipped with an Adams Rite 4500, 4700 (discontinued), or 4900 Deadlatch or cylindrical lockset with 1/2" [12.7 mm] to 5/8" [15.9 mm] latchbolt projection. Electrical actuation unlocks the keeper, releasing the latchbolt so the door may be opened without operating the latch itself.