Ergometers not for medical purposes; Manometers; Marine depth finders; Precision instruments for manipulation and positioning of microscopic objects; Pressure indicators; Pressure measuring apparatus; Surveying instruments; Surveying machines and instruments; Temperature transmitters; Air quality measurement apparatus, namely, particle counters; Angle gauges; Automatic pill counters; Depth gauges; Electric meters; Electric sensors; Electrical transducer; Electricity meters; Flow meters; Gasol...