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you can ask your family or friends lock the door up when you take the keys away
6： How to chenge the password by yourself
the SM1850 mortise is unique and NOT interchangeable with keypad-driven mortise but interchangeable with the electronic mortise
Door Thickness
basement door
EASILOK SK1850S(sfic): The Only Drill-Free Combination Keyless Storefront Door Lock with SFIC Key Override & DIY Installation in The World Style:Hookbolt you can ask your familyThe Professional Keyless Upgrade for Aluminum Glass Door Locks Upgrade your security with the SK1850SFIC, the worlds first mechanical combination keyless keypad storefront door lock designed for seamless integration and maximum reliability. Specifically engineered for storefront doors, it combines the convenience of keyless entry with the high security standards of a professional SFIC key override. Discription: Why the SK1850SFIC is the Industry