Measuring apparatus for temperature and humidity levels in gases and solid substances; measuring and calibrating instruments, namely, fluid flow calibrators and meters; electrical insulation testers; power quality meters; analyzers, namely, electronic analyzers for measuring and testing power; temperature devices, namely, probes, sensors, transmitters, and microprocessor-based infrared temperature measurement units comprised of thermometers and thermocouple probes; thermometers; current clamps, namely, electrical current clamps for testing and measuring electricity, currents, and voltage; process calibrators; air quality measurement instruments, namely, electronic monitors for measuring temperature, velocity, humidity, carbon monoxide, carbon dioxide, air velocity, airflow, air pressure, and differential pressure; air quality particulate measurement instruments, namely, particle counters and electronic particle source locators; electronic based instruments for measuring temperature levels; and infrared and thermal imagers not for medical use; electronic test and measuring instruments and devices and electronic test tools, namely, digital troubleshooting systems comprised of computer hardware and software used to diagnose and analyze electronic devices and computer hardware, electronic meters for testing automotive electrical systems; instruments for regulating, analyzing, and controlling electricity, temperature, humidity, and power, namely, current measuring clamps; electronic monitors and measuring devices, namely, electronic meters for analyzing the quality of electrical power, and identifying electrical signals in electrical circuits; temperature profiling systems comprised of thermocouples and computer software for analyzing temperatures and logging data in the fields of electronics manufacturing; thermocouples, thermometer readout devices comprised of thermometers and digital readout units; thermometer calibrators, temperature and humidity meters not formedical use; electrical measuring and testing devices with electrical standards settings, namely, voltmeters, ammeters, and ohmmeters; digital multi meter and paperless electronic data recorders sold as a unit; meters, namely, temperature meters and micro amp meters for monitoring heating ventilation air conditioning units; infrared thermometer for temperature measurement without contact; electrical testers, namely, voltage testers, electrical ground testers; digital multi meters; recorders, namely, data logger for recording voltage, amperage, and power measurements, electronicand digital voltage and power quality recorders and voltage and power event recorders; safety equipment, namely, electronic electricity analyzers; timer analyzers, namely, electronic analyzers for measuring time, frequency, and phase; timers; time counters, namely, electronic tools for measuring time intervals, time rise and fall, time periods, duty factor, frequency, pulse width, count totalization, and phase; electronic data loggers, namely, data acquisition instruments for collecting, storing, monitoring, and analyzing equipment performance data comprised of hardware, software, and portable and/or networked data logging acquisition units; measuring apparatus, namely, clamp meters for measuring electricity; electric current probes; infrared temperature measurement instruments, namely, temperature sensors; clamp meter accessories, namely, electrical testing leads, electrical current probes, rogowski based current probes, inductive current probes, hall effect current probes, and electrical connectors in the nature of crocodile, alligator, bus bar, and piercing test clips, sold separately or as a unit with clamp meters for measuring electricity; all of the foregoing goods sold separately or in various combinations