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This is a system that performs real-time monitoring of tidal levels by wirelessly transmitting tidal data measured at a measurement station to confirmation locations such as workboats and offices using a wireless modem. A measurement box and a wireless modem for transmission are installed at the measurement location, and power is supplied. At the location where data needs to be checked, a computer and a wireless modem for reception are set up, and once configured, measurements can be conducted. Depending on the required variability and accuracy, you can choose the optimal configuration from a basic setup consisting of four types of sensors.

***Features*** The measuring station continuously measures the water level and wirelessly transmits instantaneous values in real-time. At the confirmation location (receiving station), the data sent from the measuring station is received and displayed/recorded in real-time while being calculated over a user-defined average time. By setting offsets and specific gravity coefficients, it can accommodate various liquids. Using sensors suited to the application allows for measurements at the required water depth and accuracy. By using a solar battery set, it is possible to measure water level data even in locations where power supply cannot be secured. By adding receiving stations, it is possible to receive the same data at multiple locations. By using an alarm device, monitoring of warning water levels can be conducted. Since measurement values are transmitted in real-time, abnormalities can be confirmed instantly. Because it uses specific low-power radio, there is no need for opening applications or contract procedures. Additionally, there are no communication costs. Since it uses a pressure-type water level gauge, long-term operation is possible. Data is saved in a format that can be read by Excel, making it easy to create graphs and reports.

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***Uses*** - Measurement of tide levels in marine construction and water-based construction, such as dredging operations and offshore ground improvement. - Management and monitoring of water volume in dams, reservoirs, and ponds, as well as rivers and lakes. - Monitoring and verification of groundwater levels, such as well water and underground water. - Alarm systems for flood conditions in rivers. - Various other applications for measuring the depth of liquids.