Borescopes; Inclinometers; Oscilloscopes; Scales; Alarm installations and alarms; Audio cables; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Digital multimeters; Electric door bells; Electrical plugs and sockets; Gas alarms; Gas testing instruments; Hunting binoculars; Infrared detection apparatus; Night vision goggles; Protective work gloves; Smoke alarms; Spotting scopes; Surveying machines and instruments; Telesc...