McGrath MLX2 Digital Deadbolt Features: This 4 in 1 digital lock has a dead bolt latch. A stylish lock with a Bluetooth App, pin code, RFID card and manual key to provide quick and convenient access. ML-X2-B-60 : X2 Digital Deadbolt Black 60mm ML-X2-B-70 : X2 Digital Deadbolt Black 70mm ML-X2-S-60 : X2 Digital Deadbolt Silver 60mm ML-X2-S-70 : X2 Digital Deadbolt Silver 70mm Specifications: Unlocking methods: app/fingerprint/code/RFID card/key Material: Zinc alloy lock panel Colour: Black, silver Accept door thickness: 38-55mm Communication mode: Bluetooth ttlock app Support system: Android 4.4 /IOS 7.0 above Battery life: 100,000 times normal open (12months) Power supply: 4pcs AAA Alkaline batteries Working Temperature: -20 ~ 50°C Working Humidity: 10% ~ 95% Available mortise: US Standard deadbolt Download Datasheet of ML-X2