NAPCO Security Systems, Inc.,of Amityville, New York, has introduced the Freedom F64 Code-free Security System, which eliminates false alarms and maximizes account retention. The system uses a standard deadbolt with a patented lock-sensing tab inserted into the lock hole. Deadbolt and door-open statuses are wirelessly transmitted to the lock receiver on the multifunction keypad. Each touchpad controls up to two doors and includes a powerful alarm siren, passive infrared sensor with 25-foot wide-angle coverage, talking voice-aid assist speaker, four-zone expansion module, and wireless lock receiver. It can be expanded to 64 zones and supports all Gemini wireless transmitters and standard security devices, including video surveillance, panic buttons, and smoke, carbon monoxide, and motion detectors.