Ammeters; Ohmmeters; Wattmeters; Battery monitors; Battery testers; Circuit testers; Downloadable computer operating programs; Electronic instruments, namely, logic analyzers; Electronic monitors and monitor modules for monitoring electric current and electrical signals; Low-voltage power supplies; Measuring instrumentation and apparatus, namely, digitizers; Oscillographs; Portable electronic recorder for measuring and recording multiple voltage, current and thermocouple readings from various...