The Master Lock No. 4400EUREC Smart Padlock is the perfect solution to share access to a toolbox, indoor storage locker, cabinets, doors and more. The padlock comes with the Master Lock Vault Enterprise App or the Master Lock Vault Home app (available on iOs and Android) and a web interface designed for business applications managing several devices and users. Use your smartphone to open and manage your padlock with Master Lock Vault Enterprise app or share permanent or temporary access codes. Designed to support many locks (5441EUREC, 4400EUREC, 4401EURLHEC) and many users with unmatched security, simplicity and accountability. Administrators control individual or system-wide lock access with the convenient web interface, while users enjoy simple, secure access to assigned locks or lock boxes. The interface enables key safe location with your smartphone, monitor access with robust data and receive low battery alerts. The padlock features a 47mm wide metal body for durability and the 7mm diameter shackle offers 22mm vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The locking mechanism features anti-shim technology, offering maximum security. The Limited 2 Year Warranty provides peace of mind from a brand you can trust.