Lock Box. (Item #30913). Prevent costly repairs due to forced entries from emergencies. Set your 4 digit code and install a spare key. Attach the Lock Box to your door, or other secured fixture such as a stair railing. Call the 911 "non-emergency" number in your area and give them the combination. Emergency services can use this spare key to quickly enter your home.
This professional system is designed to be sold by professional dealer/installers who work closely with central stations who will monitor this system. There are monthly fees associated with these installations as they provide a full range of support services. The 4 page flyer on LifeSentry is shown here: