TEST TOOLS, NAMELY, INSULATION RESISTANCE AND CONTINUITY TESTERS AND VOLTAGE AND CURRENT TESTERS, MULTIMETERS, FIBER-OPTIC WALKIE-TALKIES, FIBER-OPTIC POWER METERS, FIBER-OPTIC POWER-AND-LIGHT-SUPPLIES, COUPLERS AND ADAPTERS ALL USED IN INSTALLATION, MAINTENANCE AN LABORATORY APPLICATIONS FOR TELE-DATA, AND VIDEO-COMMUNICATION LINES AND SYSTEMS; TEST EQUIPMENT, INSTRUMENTS AND DEVICES, NAMELY, PASSIVE COUPLERS, BARE FIBRE ADAPTERS, PROBE OSCILLOSCOPES, DIGITAL INSULATION METERS, MEGAOHMETERS,...

maintenance of computer hardware

SWIM FINS