Master Lock 4401DLH Outdoor Bluetooth Lock

Master Lock 4401DLH Bluetooth Lock: The Master Lock No. 4401DLH Outdoor Bluetooth Padlock Supports up to 10 Locks. Your Smartphone IS the KEY! Master Lock 4401DLH Bluetooth Lock  Use Your Smartphone to Open and Manage Door with 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 Backup Access Using Direction Code on Lock Keypad Share Access with Others - Either Temporary or Permanent Audit Trail Keeps All Data & History; Easy to Replace CR2 Battery 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: 2-7/32" Wide; A: 11/32 (9mm) B: 2" (51mm) C: 15/16 (23mm) Best Used For: School Lockers, Employee Lockers, Athletic Lockers, Indoor Storage Lockers; Residential Gates & Fences; Sheds, Workshops & Garages; Tool Trunks, Tool Boxes & Tool Cribs, Self-Storage Units & Lockers