Master Lock 5441EC Bluetooth Wall Mount Lock Box

Master Lock 5441EC Bluetooth Lockbox: Master No. 5440ENT Keyless Lock Box Eliminates Keys & Keys Management. Your Smartphone IS the KEY! Master Lock 5441EC Combination Lock  Use Your Smartphone to Open and Manage Your Door with the Master Lock Vault App Includes Master Lock Vault Enterprise IOS / Android App and Web Interface, Designed for Business Applications Working with Many Locks and Many Users Secure Door Access: Only Authorized Devices Can Enter; Grant or Revoke Access Audit Trail Keeps All Data & History (Formerly 5441ENT) Comes with Easy-to-Replace CR2450 Battery Large Storage Capacity for Keys and Access Cards Backup Access Using Direction Code on Lock Keypad Share Access with Others - Either Temporary or Permanent Low Battery Notification and Reminder on Padlock and in IOS / Android App Battery Jump Allows for a Temporary Access if Battery Dies While Locked Specs_Width: 3-1/4"in (83mm) Height: 5in (12.7cm) Depth: 2-5/16in (59mm) Best Used Outdoors For: Real Estate Access Control; Entry Doors; Access Control for Commercial Buildings