Simplify your company’s key management A company’s key management should be simple and secure for everyone involved. An access control system monitors when and by whom the maintenance area is used. Aptus proximity systems save you worrying about lost keys or replacing costly lock cylinders in maintenance areas. Simply block the lost key and order a new one with a few presses of a button. Improve security with Aptus keys The Aptus key is keyhole shaped and has a unique 9-digit code. If a key gets lost, simply block it so nobody unauthorized can use it. The Aptus key is compatible with all Aptus proximity readers. It is solid cast, making it hard-wearing and watertight.