Schlage’s Keyed Entry Lock With Built-in Alarm offers a lower-cost alternative to hard-wired security systems. The alarm can be set to detect not only forced entries but any kind of activity at the door — a useful feature for homeowners trying to keep tabs on children or elderly parents. The product comes in the company’s Camelot and Century styles with a brass or nickel finish and is powered by two AA batteries. It costs $100. Schlage Lock Co., 888/805-9837, schlage.com
