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 Sausage Packs Variable Speed Trigger Sausage Packs Variable Speed Trigger Controls Flow of Sealant Complete with 12 Volt Battery 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 Built in Li ion rechargeable battery lasts up to 200 days on a single charge protect your cabinet or your home against thieves