Cylinder quantity: Single cylinder Finish: Nickel Plating Body material: Stainless Steel Thickness of lock body: 2.0mm Keys: 5 pcs brass standard keys Extension length: 20mm of dead bolt Door thickness: 35mm ~ 50mm Working voltage: 9 ~ 18 VDC Working current: 350mA Static current: 15mA Locking method: By collision Lock-opening delay time: Automatically lock within 9s if not opened Operating time: 0.5s Service life: 500,000 times Regulated & filtered: 500VDC Voltage Locking method: Magnetic induction Surface temp: Low temperature Advantage: Low noise, low consumption, long life Holding force: 1000kg Open ways from outside: keys Open ways from inside: Rotary knob Suitable humidity: 0-90%(non-condensing) Operating temp: -40°C ~ 50°C