Ingersoll-Rand Co.'s Schlage unit introduced some door locks that can be wirelessly set or opened via the Internet, from a mobile phone or a computer. The invention was unveiled at the CEDIA Expo in Denver, Colorado this week.

The new LiNK system can also be accessed remotely in order to apply fully-automated user control.

The locks are battery operated and can be opened with a standard key or four digit passwords. The locks can see who opens and closes the doors due to a built in wireless connection. The wireless system also protects against unauthorized access. You can also change the four-digit unlock code, or enable or disable the lock online.

A primary kit comprising a bridge and lock cost $299. If one wants additional deadbolts and locks, they cost $199 each. Users are also charged $12.99 per month for access to the LiNK online portal and mobile applications; that price includes 100MB of storage for IP camera video, that’s if the customer installed his LiNK with the camera feature.

The system allows you to give several people access to your house, each with his own access code, then monitor via cell phone who enters and when. Thus teenager girls will now have trouble sneaking into and out oftheir homes with their boyfriends while  parents are at work or sleeping.

The system is compatible with Zensys’ Z-Wave Alliance of home automation products. The Z-Wave “Bridge” plugs into an Ethernet port on the household Internet router or model to connect the locks, which are powered by regular batteries.