Direct Factory Store We are a direct factory store, please trust us and purchase in our store Smart Door Lock Bluetooth Smart Cylinder Lock Electronic Door Lock With TT Lock App Remote Control Keypad Code RFID Card Keyless Lock for EU Model Multiple unlocking methods 1.password unlock 2.swipe card to unlock 3.phone unlock 4.key unlock Instruction: standard: European Standard 40/40 Unlock: TT Lock APP/RFID Smart Card / Password/ Mechanical key Color: Silver/Black Battery Type: AAA Battery Battery Replacement: Replaceable Materials: 304 Stainless Steel + Aluminum + Plastic Waterproof Grade: IP44 Automatic Lock: Yes Adjustable Door Lock Time: Yes Low Battery Reminder Function: Yes Working Temperature: -30-60 degree Size Options Standard: European Standard 40+40 More size avaliable:30+30mm 35+35mm 60+40mm 75+40mm Adjustable Lock Cylinder The outside handle can be adjustable freely can be adjusted to the maximum length of 20mm 1Mobile phone operation Supported by TT lock App TT lock App is an smart lock app, its multiple functions always satisfy your requirements Send temproary passcode/ekey remotely Manage passcode, ekey View access logs Open the lock by app remotely or nearly. Passage mode setting Time attendence ..etc.