SEMPAL CO. LTD

Water level indicators; high-frequency apparatus, namely, high-frequency switches and high-frequency switching power supplies; electronic sensors of measurement and display of consumption, namely, volume sensors, flow sensors, pressure sensors, temperature sensors, level sensors, acoustic sensors, ultrasonic sensors; electric measuring apparatus and devices, namely, water meters, heat meters, flowmeters, densimeters, gas flowmeters, liquid level measuring apparatus, and ultrasonic heat and water meters; electric apparatus for monitoring and controlling, namely, gas correctors, temperature regulators, pressure regulators, valves for regulating gases and liquids, electrical control panels, and telemetering controllers