NetBolt Smart Padlock, Metal Waterproof, Suitable for House Door, Suitcase, Backpack, Gym, Bike, Office, APP is Suitable for Android iOS, Support USB Charging (Gold) Tool Blades & Other Accessories Replaces any standard door knob Replaces any standard door knob Can be installed below an existing deadbolt**Installation requires no modification to door Fits doors up to 1 3 4" thickUnlocks with 1 or 2 user programmable codesCodes can contain up to 8 digits Codes can be easily changed whenever necessaryIlluminated keypad Manual keyed emergency bypass (2 keys included) Latch adjustable from 2 3 8" or 2 3 4" back set Includes all required installation hardwareDesigned for interior or covered exterior locationsOperates approx minimizing disturbances to neighbors and enhancing your overall user experience protect your cabinet or your home against thieves USE CODE TAKEOFF10 FOR $10 DISCOUNT