Actinometers; Aerometers; Anemometers; Barometers; Hygrometers; Manometers; Photometers; Thermo-hygrometers; Acoustic alarms; Air analysis apparatus; Air quality measurement apparatus, namely, particle counters; Carbon dioxide detectors; Carbon monoxide detectors; Climate control digital thermostats; Digital weather station instruments; Electronic numeric displays; Electronic sensors for measuring solar radiation; Environmental monitoring system comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; Gas testing instruments; Gasometers; Measuring apparatus for temperature and humidity levels in gases and solid substances; Measuring apparatus, namely, rain gauges; Meteorological instruments; Pressure gauges; Pressure indicators; Pressure measuring apparatus; Pressure measuring apparatus; Pressure recorders; Pressure sensors; Radio-frequency receivers; Radio-frequency transmitters; Radio receivers and radio signal tuners; Radio transceivers; Radio transmitters and receivers; Radio transmitters and receivers for remote controls, radio controls; Sound alarms; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Temperature indicators; Temperature meters not for medical use; Temperature sensors; Temperature transmitters; Thermometers not for medical purposes; Thermometers other than for medical use; Time clocks; Time recording apparatus; Transmitters of electronic signals; Wireless remote temperature and humidity monitors for building maintenance; Wireless transmitters and receivers