Application It is suitable for doors of 2.36'' in thickness. It can be used to replace the lock cylinder of the door in apartments, hotels, companies, homes, etc. Specification Material: Aluminium alloy, Zinc Alloy, Copper Alloy, Stainless Steel, Acrylic, Plastic Color: Silver/Black Process: Fine Polishing, Plating Power Supply: 1*CR123A Battery ( Not Included) Assembly Required: Yes Installation: Intermediate Applicable Range: Apartment, Hotel, Home Unlock Method: Fingerprint, App, Keycard, Manual Key Storage Capacity: 100 Fingerprints, 100 Keycards Service Life: About 100,000 Times Working Temperature: -20~60°C/-4~140℉ Working Humidity: 65% Protection Class: IP53(Dust and Splash Proof) Emergency Power: 1x Micro Type-C Charging Port Rear Twist Size: 31.4*34mm/1.24*1.34in Applicable Door Thickness: 6cm/ 2.36in Cylinder Size: 58*42mm/2.28*1.65in Lock Cylinder Length: 60mm/2.36in Gross Weight: 0.55kg/1.21lbs Package Size: 25*10*7cm/9.8*3.9*2.8inch Package Included 1* Lock Cylinder 2* Smart Keycards 2* Allen Key 2* Manual Keys 1* Screwdriver 1* English Manual Notes 1.Please check the cylinder length to make sure it fits your door before ordering. This product does not include batteries, please purchase CR123A Battery by yourself. 2.We sincerely recommend professional installation. Please keep your fingers clean when using this lock. 3.Please read the manual before operating this product, and keep it for further reference.