9 Automatic liquid-level control machines and instruments; Flow meters; Gasometers; Level switches and level indicators for monitoring and controlling liquids in tanks and vessels; Liquid level sensors; Oil level sensors; Sensors for the determination of temperatures, positions and distances; Tool measuring instruments; Ultrasonic sensors; Water tank level gauges
The mark consists of the wording "HTSZIOT" in stylized font,and there is two vortex above the word,partially encircled by a circle. Color is not claimed as a feature of the mark. The wording HTSZIOT has no meaning in a foreign language.