Lock Size: 231.6Lx41.6Wx24.5H(mm) Armature plate: 180Lx38Wx11H(mm) Holding Force: 280kg(600Lbs) Voltage: 12/24VDC+10% Current Draw: 12V/500mA 24V/250mA Suitable for: Wooden door, Glass door, Metal door, Fireproof door Signal Output: Need to order YM-280M-S 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