Access control and alarm monitoring systems; Acoustic alarms; Alarm monitoring systems; Anti-intrusion alarms; Biometric fingerprint door locks; Burglar alarms; Digital door locks; Dog whistles; Electric bark control dog collars; Electronic door alarms; Electronic locks; Portable electronic recorder for measuring and recording multiple voltage, current and thermocouple readings from various transducers; Protective body armor for dogs; Smoke detectors; Sports whistles