Scientific, electrical and electronic apparatus and instruments, for testing test equipment, calibration of test equipment, displaying, printing, monitoring, recording, indicating, logging, analysing, sensing, detecting, measuring, and checking, data relating to metering of electricity, electrical and electronic circuits, ambient gases, exhaust gases, environmental gas, exhaust emissions, combustion efficiency, environmental parameters, and air quality, namely, flue gas analysers, gas leak detectors, gas pressure meters, indoor air quality meters, and vehicle emission testers; room air flow measuring instruments, air flow meters, flue draft pressure meters, gas pressure meters, gas to air ratio meters, refrigerant gas leak detectors, thermal imaging cameras for temperature measurement, differential thermometers, pocket temperature thermometers, infrared thermometers, combustion smoke probes, and flue gas and pressure probes none of the foregoing for medical use; Scientific, electrical and electronic apparatus and instruments, namely, combustion efficiency analysers and combustion testing probes, to measure stack temperature, flue pressure, and gas levels, all in order to calculate the efficiency of boilers, heaters and furnaces; automotive emissions analysers, namely, gas analysers and diesel smoke meters; hazardous gas detectors for detecting the presence of gases and includes audible and visual alarm and indicators; scientific, electrical and electronic apparatus and instruments for measuring and testing electrical circuits and electrical currents, but not modifying the electrical input into said electrical circuits and electrical currents, namely, digital multimeters, clamp meters, and voltage testers, all being electronic and electrical test meters; replacement parts and fittings for all of the aforesaid goods

Repair and maintenance of scientific, electrical and electronic apparatus and instruments, gas combustion efficiency analysers, gas combustion testing equipment, automotive emissions analysers, air quality monitors, hazardous gas detectors and warning instruments, and electronic and electrical test meters, all being gas and emission analysers, gas emission detectors, room air flow measuring instruments, air flow meters, flue draft pressure meters, gas pressure meters, gas to air ratio meters, refrigerant gas leak detectors, thermal imaging cameras for temperature measurement, differential thermometers, pocket temperature thermometers, infrared thermometers, combustion smoke probes, flue gas and pressure probes, probes to measure stack temperature, flue pressure and gas levels in order to calculate the efficiency of boilers, heaters and furnaces, carbon dioxide detectors, carbon monoxide detectors, carbon dioxide alarms, carbon monoxide alarms, gas leak alarms, digital multimeters, clamp meters, and voltage testers; information, consultancy and advisory services relating to the aforesaid

Conformance testing, quality testing, and safety testing of scientific, electrical and electronic apparatus and instruments being gas and emission analysers, gas emission detectors, room air flow measuring instruments, air flow meters, flue draft pressure meters, gas pressure meters, gas to air ratio meters, refrigerant gas leak detectors, thermal imaging cameras for temperature measurement, differential thermometers, pocket temperature thermometers, infrared thermometers, combustion smoke probes, flue gas and pressure probes, all for testing, calibration, displaying and printing results, monitoring, recording, indicating, analysing, sensing, detecting, measuring, checking, and metering of electricity, electrical and electronic circuits, ambient gases, exhaust gases, exhaust emissions, combustion efficiency, and environmental parameters, to determine conformity with certification standards; Conformance testing, quality testing, and safety testing of combustion efficiency analysers and combustion testing probes to measure stack temperature, flue pressure and gas levels in order to calculate the efficiency of boilers, heaters and furnaces to determine conformity with certification standards; Conformance testing, quality testing, and safety testing of automotive emissions analysers being gas analysers and diesel smoke meters to determine conformity with certification standards; Conformance testing, quality testing, and safety testing of room air quality monitors, hazardous gas detectors being carbon dioxide detectors, carbon monoxide detectors and warning instruments being carbon dioxide alarms, carbon monoxide alarms, gas leak alarms, digital multimeters, clamp meters, and voltage testers, to determine conformity with certification standards; information, consultancy and advisory services relating to the aforesaid