QINGPING

Barometers; Thermo-hygrometers; Air analysis apparatus; Air quality measurement apparatus, namely, particle counters; Computer network hubs, switches and routers; Electric sensors; Electric or electronic sensors for temperature and humidity; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality; Gas sensors for measuring gas concentration; Gateway routers in the nature of computer control hardware; Light systems comprising light sensors and switches; Measuring apparatus for temperature and humidity levels in gases and solid substances; Scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids