Product Name: New Security Smart Fingerprint Door Handle Electronic Drive Lock Not Need to Change The Cylinder Easy Installation Model NO.: TK-K1 Usage: Household Door Locks, Bedroom, Channel Lock Lock Cylinder Length: Use Orignal Cylinder Door Thickness Fits: 35-50mm Backset: 60mm Part: Lock Anti-theft Standard: Security Shape: Mortise Door Lock Style: Modern Type: Electronic Material: Zinc Alloy APP: HP Lock Trademark: TK Transport Package: Color Box Origin: China HS Code: 8301400000 Product Description TOKING SMART FINGERPRINT HANDLEcanreplaceby99% of mechanical door handles, which is very convenient toinstall.Can also fit and install in narrow bezel door,simple beauty but strength.Integrated fingerprint,bluetooth ,mechanical keys and power system into handle make smart locklighter and more pretty.At the same time, the highly integrated clutch structure increases the stabilityof the electronic circuit board and reduces manufacturing costs.