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In the quartz-type water level gauge, frequency signals from the crystal oscillator are converted into optical signals (single mode: SM) in the electrical-optical converter (E/O converter) of the sensor for transmission.
For power, the coder supplies power in the form of light to the optical power supply unit inside the sensor, which generates electricity.

It has a built-in sensor, sensor cable, and temperature sensor used in crystal water level meters with high accuracy and stability. Even in deep water such as a dam lake where there is a temperature difference in the water, the temperature sensor measures the water temperature and performs density correction according to the water temperature, enabling highly accurate water level observation. And, it is easy to install and maintain it, just like conventional types of water level meters.

Our pressure-type water level meter uses a semiconductor pressure detection system, and ceramics are used in the pressure receiver that converts the water level into water pressure.

Our microwave-type water level gauge uses a microwave pulse propagation time difference system. Because it uses microwaves to make measurements, it is not affected by environmental conditions, the properties of the object, or temperature.

Our cylindrical digital water level gauge has a simple structure in which a float with a magnet attached can move up and down. It is equipped with a reed switch in 1-cm increments to enable direct water level measurement by the position of the float. It can be installed in any location of a river or waterway, near a sluice gate, at a drainage pumping station, or wall of a pumping station.