ASSA ABLOY Hospitality supplies Stand-alone Electronic Wireless Locking System. ASSA ABLOY Hospitality offers a wide range of electronic equipments for guestroom security, hotel door locks and in-room safes in the hospitality industry. The Stand-alone Electronic Wireless Locking System available under the brand name "VISIONLINE" is a stand alone electronic lock operating in online mode through Radio Frequency [RF-online] that is based on Zigbee high security open platform.