Apparatus and instruments for [ weighing, ] measuring, signaling, automation, control and checking being supervision apparatus, systems and instruments, namely, portable computer programmed balancing instrument in the nature of an electronic device with electronic differential pressure gauge and micro computer software therefor for measuring, signaling, control and checking of flow and differential pressure for hydronic balancing of HVAC systems; programming apparatus, namely, [ timers, ] circuit boards and recorded computer software for measuring differential pressures, flow rates and temperature of fluids within conduits, all the aforementioned goods for heating, cooling, ventilation, water supply, temperature and moisture adjustment lighting, power supply, air conditioning and security devices in buildings; [ transformers; rheostats, humidistats; fire fighting apparatus, namely, fire hose nozzles, extinguishers, and alarms; ]apparatus including automation, control and checking, namely, supervision systems, for lighting, heating, cooling, steam generating, [ cooking, ventilation, ] water supply, air conditioning, temperature and moisture adjustment, power supply [ and sanitary purposes ] in buildings, namely, office automation systems comprising wireless and wired controllers, controlled devices and software for HVAC, security, safety and other office monitoring and control applications

Building construction; repair of HVAC equipment; installation and maintenance services for HVAC equipment; all these services in connection with heating, cooling ventilation, water supply, temperature adjustment, lighting, power supply, air conditioning, and security devices in buildings

Education services, namely, classes, workshops and seminars in the fields of heating, cooling, ventilation, water supply, temperature and moisture adjustment, lighting, power supply, air conditioning and security devices in buildings; providing training, namely, training in the use of HVAC equipment, all these services in connection with heating, cooling, ventilation, water supply, temperature and moisture adjustment, lighting, power supply, air conditioning and security devices in buildings

[ Scientific and industrial research in the fields of heating equipment, cooling equipment, ventilation equipment, water supply equipment, temperature and moisture adjustment equipment, lighting equipment, power supply equipment, air conditioning equipment and security devices in buildings; computer programming and computer software programming and updating; all these services in connection with heating, cooling, ventilation, water supply, temperature and moisture adjustment, lighting, power supply, air conditioning and security devices in buildings ]