1The key box adopts highquality zinc alloy material, durable and can withstand all kinds of bad weather. 2Support mobile APP control, can send PIN codes and key to open the door through the mobile application. 3Key box will always perform ondemand and allow you instant access to your keys. 4With multiple password methods, onetime password, permanent password, timelimited password, and record query. 5Key storage box, suitable for most door handles and can be easily hung on doors, fences or other locations. Condition: 100% Item Type: Key BoxMaterial: Zinc AlloyBattery Parameters: 4 x AAA Alkaline Batteries (Battery Not Included)Unlock Function: App, PasswordFor Bluetooth Standard: For Bluetooth 4.1BLESupport Mobile Phone System: For Android 4.3/ for IOS 7.0 and aboveLow Battery Alarm Voltage: 4.8VStandby Current: 65AWorking Current: Less Than 200AWorking Temperature Range: -20-70False Acceptance Rate: 0.001%Rejection Rate: 1.0%Weight: Approx. 1258g / 44.4ozFingerprint Head Size: Approx. 195x68x43mm / 7.7x2.7x1.7in 1 x Key Box (Battery Not Included)1 x Rubber Mat1 x Accessory6 x Expansion Tube6 x Screw1 x Screwdriver1 x Gasket6 x Washer8 x Bolts1 x English Manual 1. Please allow 0& 8209;1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.