BCST

Flowmeters; Calorimeters; Cables, electric; Wires, electric; counters and meters in the nature of pH meters; Densimeters; Distance measuring apparatus; Telemeters; Water level indicators; Pressure gauges; Gasometers; Surveying apparatus and instruments; Manometers; Precision measuring apparatus used to measure the flow of electricity; Measuring instruments used to measure the flow of electricity; Pressure measuring apparatus