P77DL series wireless Compact Oceanographic tide level meter,4G leverl/temperature recorder can measure and record the data of tide level and water temperature, and realize the measurement of tide level and water temperature. The recorder can be powered by built-in battery (optional). The built-in high-precision dynamic liquid level sensor can measure and record the parameters of tide level and water temperature in real time. The recorder integrates the three units of pressure measurement, storage and wireless transmission, and realizes the measurement of all kinds of pressure vessels, oceans, rivers and rivers Continuous dynamic measurement of tidal level and water level in river, reservoir and pool, and automatic reporting of water level and temperature information to the monitoring center. With the function of recording, the pressure data can be transmitted wirelessly in real time, and the pressure data can be saved automatically in case of power failure or bad signal, so as to realize the function of wireless real-time data transmission of monitoring data. The recorder has a large capacity storage space inside, which can continuously store the water level measurement data to form a continuous self counting water level gauge. It is a reliable means to realize the dynamic and static monitoring of water level and tide level for hydrology, water conservancy and water supply systems, and provides timely and reliable flood control dispatching basis for flood control command departments.

-100Hz High response frequency, good reliability and 200m wide measurement range

-Power supply self stability technology
-automatic recovery technology, over-voltage, over-current automatic protection
-Real-time data transmission

Oceanographic, hydrology and water conservancy, water supply system, scientific research and teaching, fluid mechanics, etc

Measuring medium: seawater, fresh water, etc

Measuring water level range: 0 - 200mH2O

Measuring water temperature range: 0-50 ℃

Record capacity: 50000 pieces of data (local record type, customizable capacity), or 4G real-time data transmission to the cloud platform (standard)

Output signal: 0 ~ 100mV (built-in sensor)

Frequency response range: 0 ~ 100Hz

Water level measurement accuracy: 0.01m

Temperature measurement accuracy: 0.2 ℃

Display restitution: 0.0001

Stability: 0.2% FS / year, maximum 0.25% FS / year

Power supply: 24 VDC, or 220 VAC

Applicable temperature range: 0 ~ 50 ℃

Communication mode: 4G

4G Data transmission frequency: 4Hz

Data recording frequency: up to 4Hz

Communication protocol: Modbus RTU

Material: titanium alloy for high salt and high corrosion area

              316L stainless steel for low corrosion offshore and fresh water

Protection grade: IP68