Access by app, M1 card, fingerprint, passport code, wristband or key.304 Stainless Steel Panel/Largest Armored Glass Panel.Door lock modules are waterproof, moisture resistant and mold resistant.stylish larger panel, 284* 68mm, it can fit most of the wooden metal door.Touch-Access Biometric fingerprint sensor on the reader.Strong and safe Aluminum alloy lock panel, Anti-corrosion and study.Backup USB external power interface, in case the power is dead.Reversible free style handle.Bulit-in doorbell.Insert optionIf your door has a plug, choose a plug such as "A"If not, choose a plug such as "B"How do you determine whether the lock fits your door or not?(1) Measure the thickness of the door;(2) Measure the length of guide plate;(3) Measure the width of the guide plate.If you are not sure, please contact us and tell us the details of it directly!