Air quality measurement apparatus, namely, particle counters; Atmospheric oxygen monitors; Battery monitors; Electric or electronic sensors for measuring volume levels, air quality, pressure, and temperature; Electronic carbon dioxide monitors, other than for medical purposes; Liquid level sensors; Sensors for measuring volume levels, air quality, pressure, and temperature, not for medical use; Telecommunications hardware and recorded software for monitoring and alerting remote sensor status via the Internet sold as a unit; Temperature sensors; Wireless controllers to remotely monitor and control the function and status of other electrical, electronic, and mechanical devices or systems, namely, remote metering systems
Electrical and Scientific Apparatus