Feature:1. Access control card can be used to unlock the door, support for EM or SM compatible card, long-distance high-speed reading card, internal and external double reading card.2. 4pcs AA batteries (excluding) power supply, long service life, can be used for more than one year.3. Simple installation, no need of wiring, safer and more convenient to use.4. When the battery is exhausted, you can use the standard mechanical key to unlock the door, ensure timely access.5. Support adds 970 ID card users, which can bring much convenience for you.Specification:Condition: 100% Brand NewItem Type: Door LockMaterial: Stainless Steel Color: SilverPower Supply: 4 x AA Batteries (Not Included)Battery Life: More Than 1 YearPower Supply of Remote Control: 1 x CR2025 Battery (Built-in)Number of Cards: 970 UsersStatic Current: <38maOperating Current: <350maOperating Temperature: -40℃ - 70℃Working Humidity: < 95%Unlock Mode: Internal rotation button, external metal key, external ID card, internal ID cardRF Card Unlocking Time: <0.5sCard Reading Distance: Approx. <20mm/0.8inAutomatic Lock by Mistake: Support, Delay 10 SecondsDoor Closing Inductive Anti-interference: Support, Delay 0.5s Package List:1 x Lock Body1 x Locking Lug1 x Outdoor Shield1 x Lock Head3 x Key1 x Install Accessory Package2 x ID Card1 x Management card1 x Infrared Controller1 x Instruction