Air quality alarms; air analysis apparatus; electric dust removing apparatus for analyzing and measuring dust emission from collected dust ; air pollution detectors; electric installations for the remote control of industrial operations; hygrometers; apparatus and instruments for physics, namely for monitoring, measuring, tracking and reporting air quality; hydrometers; ionization apparatus for scientific or laboratory use but excluding treatment of air; meters; instruments and equipment for ...

Electric and electronic air analysis apparatus, namely, electric supervising controllers for the remote control of industrial operations to monitor and purify air environments via mobile dirigible sensors which detect and control levels of carbon monoxide, gas and particle density; air and dust detectors; hydrometers; thermostats; electronic equipment, namely indoor sensors for diagnosis and the electronic recording and transmission of date related to temperature, humidity, dust frequency and...