Lock Size: 250Lx48.5Wx25H(mm) Armature plate: 180Lx38Wx11H(mm) Holding Force: 280kg(600Lbs) Voltage: 12/24VDC+10% Current Draw: 12V/500mA 24V/250mA Aptational Bracket: ABK-280UL ABK-280L ABK-280ZL Signal Output: Dry Contact,Max Rating of Contact Current 3A LED indicates the door is unlock,Green indicates the door is lock Suitable for: Wooden door, Glass door, Metal door, Fireproof door Surface Temp: í_+20íµ Operating Temp: 10í½+55íµ(14-131F) Suitable Humidity: 0~90%(non-comdensing) Finishes for Shell: Anodized alninum Finishes for Magnetic: Zinc Finishes for Armature: Zinc Weight: 2kg Standard Packing: 12pcs 54.3*13.5*19.3cm