AOUL52‑A Integrated Radar and Hydrostatic Composite Water Level Meter
The product employs a dual-mode measurement approach combining radar and hydrostatic pressure sensing. At medium to low water levels, non-contact radar ranging is used, which adapts well to varying water quality, suspended solids, and floating debris. At high water levels, the system automatically switches to a high-mounted hydrostatic pressure sensor that measures water level based on pressure, thereby overcoming the radar blind zone inherent in high-level measurements. This composite sensor configuration simultaneously addresses the radar blind zone, the susceptibility of hydrostatic sensors to clogging, and the influence of atmospheric pressure on measurement accuracy. Moreover, the two sensor systems can perform mutual calibration, enhancing measurement stability—making this solution particularly well-suited for urban manhole monitoring applications.
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- AOUL52‑A Integrated Radar and Hydrostatic Composite Water Level Meter
Key Features
- Integrated design for quick installation and maintenance of manholes, with excellent cost-effectiveness.
- Integrates radar, static pressure, and conductivity sensors.
- The host features an ABS housing with excellent corrosion and water resistance.
- Equipped with an atmospheric-pressure self-balancing algorithm to eliminate the influence of atmospheric pressure on hydrostatic pressure measurements.
- Equipped with a spirit level for convenient on-site installation.
- Built-in digital attitude sensor
- Antennas are available in standard and underground models.
- Low self-discharge battery for long device battery life
- Holds multiple patents and software copyrights.
- Obtain an IP68 test report issued by a CMA-accredited testing institution recognized by the China National Accreditation Service for Conformity Assessment.
- Selected for the “National Water Resources System Catalog of Key Procurement Items for Bidding”
Application Scenarios
Suitable for measuring water levels in manholes, river channels, and irrigation canals; can operate in environments without external power supply (where grid power is unavailable or a solar power system cannot be connected), with data transmitted wirelessly to a server. -
Water level accuracy 0.2% FS ± 0.001 m Water level resolution 0.001m 120G radar Measurement range: 0.02–20 meters; custom options available. Hydrostatic Measurement range: 0–5 meters; custom options available. Radar Operating Modes FMCW Host casing ABS Operating temperature -10~70°C battery Built-in lithium-thionyl chloride battery, non-rechargeable, 76 Ah/3.6 V DC, annual self-discharge ≤5%. Data Refresh By default, the device measures and uploads data every 5 minutes; this interval can be customized. NB-IoT battery life Up to 4 years under the 5-minute testing and transmission mode. 4G Cat 1 battery life Up to 4 years under the 5-minute testing and transmission mode. Wireless breakpoint resume Automatically save data when the base station signal is interrupted, and resume sending timestamped data once the signal is restored. Bluetooth (optional) BLE 5.1 low power: line-of-sight transmission range of 150 meters, sensitivity of –90 dBm, transmit power of +6 dBm, standby current of 50 µA, and battery drain of –2%.
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Address：
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No. 12 Xingye West Road, Mawei District, Fuzhou City
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Email:
aotai03@fjautec.com Mr. Zhou
aotai01@fjautec.com Mr. Liao
aotai02@fjautec.com Mr. Zhang
aotai04@fjautec.com Mr. Chen
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autec@163.com
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