Instead, homeowners activate locks using a variety of devices, including a number combination, a magnetic card, or a remote-control unit. Click on the picture above to see how simple and attractive universal home modifications can be. What You Should Know You should consider installing a keyless locking system if poor hand strength makes it difficult for you to grasp and insert a key into a standard lock. Keyless lock sets also are convenient if you tend to lose keys, are concerned about keys being duplicated by unwanted intruders, or just prefer the convenience of getting in to your home without using keys. Keyless locking systems vary, depending on their power source.
Some systems are freestanding and operate on batteries.
Others need to be wired into your home's electricity. Still others are strictly mechanical and require neither batteries nor electricity. Because they don't have power-assisted controls, mechanical models are generally not recommended for people with weak hands. The main difference between types of keyless locking systems is the way in which they identify valid users and open the door to them. These models let you open the door by punching a numerical combination into the keypad near the door.