... system Can be used alarmed or no door lock,mortise lock,steel laminated padlock Used on:Trucks,Trailers ... , Garden machinery,Garatges,Lockups,,Cars,Lockers ,etc.Lock Features:.110dB siren.Auto-alarming system & locking ... .Shackle diameter: 10mm Key specs:.3pcs Maximum Security keys .Additional keys availableBattery specs:.Tamper proof ... 1.5V) .3pcs keys door lock,mortise lock,steel laminated padlock