Product details ①.Suitable for wooden cabinets - RFID cards can penetrate through thicker wood panels (up to 45mm/1.7) and fits doors up to 0"-1" thick, ideal of cabinets, lockers, cupboards, data racks, safes ②.Compact size & sturdy mechanism - LAT-CH and mortise are made by metal, they are sturdy enough for the cabinets and unlock the cabinet door without touching ③.Low power alarm & auto-unlock - It will indicate low-battery status with a long beep after being opened and the door will open automatically when the batteries become too weak ④.Two unlock modes - Single mode (one user card to unlock) and dual mode (2 user cards together to unlock) ⑤.One key for multiple locks - This RFID locks are programmable, and you can use one key (RFID card/fob) to unlock several cabinet locks Specification parameters ①.Materials: ABS ②.Color: White ③.Packing size: 12.5×4.5×6.9cm /4.92x1.77x2.72in ④.Net weight: 150g/0.33lb ⑤.Gross weight: 170g/0.37lb ⑥.Battery type: Two AA type batteries (not included) ⑦.Applicable scene: Bedroom, Office, Outdoor Package list ①.1x Lock Body ②.1x LAT-CH ③.1x Card ④.2x Keyfobs ⑤.1 Set x Screws Warm prompt ①.Batteries are not included in the package and need to be purchased separately ②.Program the key into the locks and test it before installation ③.After the long beep indicating low battery, the lock can be used approximately 20 times ④.When the batteries are too weak to operate, replace them before using the lock again