HJ-UT-C

A compact, non-contact radar water level station for surface water
Using FMCW technology, it provides accurate measurements immune to temperature, vapor and dust
With integrated RTU, Bluetooth, battery and solar controller, it only needs an external solar panel to work fully
It features lower cost, easier installation and less maintenance than traditional split-type water level gauges

    Over View

    Our radar sensors leverage advanced radar technology to deliver non-contact, precise measurements of surface water level, velocity, and flow rate. Operates on the time-of-flight principle: emits radar signals, captures reflections from water surface, and calculates level instantly via signal travel time.

    Contactless radar technology enables quick and simple sensor installation above the water surface with minim。

    Technical Parameter

    ParametersParametersInterfaces and OthersInterfaces and Others
    Measurement Range (m)15m/40m/110mDigital InterfaceRS485(default) /RS232(optional)/SDI12(optional)/Modbus
    Protocol
    Measurement Accuracy±3mm, ±0.05%FSWireless Transmission4G(default)/NB-IoT/LORA
    Radar AntennaPlanar Microstrip Array AntennaTransmission Power≤24dBm
    RTU Upload Cycle1minute-24hours,ConfigurableReception Sensitivity110dBm
    Radar Frequency80GHzSIM CARDBuilt-in
    Beam Angle8 °AntennaRod-shaped, Lead Wire (Optional)
    Built-in Lithium BatteryThe following options are available:
    ★12.6V / 11.6AH~(Rechargeable Battery),External Charging Voltage: 16 24VDC
    ★8.4V / 11.6AH~ (Rechargeable Battery),External Charging Voltage: 12~ 24VDC
    ★10.8V / 57AH (Disposable Lithium Thionyl Chloride Battery)
    Wireless Transmission
    Protocol
    SL651(default), SZY206/MQTT/HJ212/HTTP,
    and other custom protocols
    Operating Temperature-20℃-70℃Bluetooth StandardAbove 4.2
    Casing MaterialUV-resistant ASABluetooth Transmission
    Power
    +8dBm
    Dimensions215×144×126(mm)Bluetooth Reception Sensitivity-95dBm at 0.1%BER
    Protection RatingIP68Lightning Protection Rating6KV
    Recommended Solar Panel20W,18V(Vmp)Collection IntervalTimed collection, interval configurable, minimum interval 1 minute
    Temperature Collection± 1 ℃Data ReportingSupports hourly reports, additional reports, timed reports, and data retransmission

    Note: The actual battery life is closely related to factors such as sampling frequency, upload frequency, network signal quality at the installation site, ambient temperature, and other environmental conditions. Users should closely monitor the device’s operating status and environmental factors during operation.

    Highlights

    Waterproof design for field applications
    Stable monitoring in high-velocity floods
    Low power consumption, solar compatible
    Lightweight (<2.6kg), wind & vibration resistant
    Supports multiple standard & custom protocols
    Built-in tilt sensor for easy installation

    Applications

    Hydrological measurements in rivers, lakes, and reservoirs, Water level monitoring in river channels, irrigation canals, and flood prevention areas, Water level monitoring for urban flood control and waterlogging ,Flash flood monitoring in mountainous areas.

    System Architecture Diagram

    FAQ

    Q

    How do I qualify for a business line of credit?

    Please note the following installation and maintenance requirements:

    1. Avoid sharp bends or kinks in the cable. The cable contains an air tube, and excessive bending may restrict the airflow and affect water-level measurement.
    2. If sediment or sludge has accumulated at the bottom of the channel, use a raised mounting bracket to install the sensor above the sediment layer.
    3. Floating debris, such as plastic bags, may cover or obstruct the transducer. Please inspect and remove any debris regularly to prevent it from affecting the flow measurement.
    Q

    Why does the final measurement result deviate so significantly from the actual value?

    Please note the following installation and maintenance requirements:

    1. Avoid sharp bends or kinks in the cable. The cable contains an air tube, and excessive bending may restrict the airflow and affect water-level measurement.
    2. If sediment or sludge has accumulated at the bottom of the channel, use a raised mounting bracket to install the sensor above the sediment layer.
    3. Floating debris, such as plastic bags, may cover or obstruct the transducer. Please inspect and remove any debris regularly to prevent it from affecting the flow measurement.
    Q

    What is the difference between being pre-qualified and pre-approved for a mortgage?

    Please note the following installation and maintenance requirements:

    1. Avoid sharp bends or kinks in the cable. The cable contains an air tube, and excessive bending may restrict the airflow and affect water-level measurement.
    2. If sediment or sludge has accumulated at the bottom of the channel, use a raised mounting bracket to install the sensor above the sediment layer.
    3. Floating debris, such as plastic bags, may cover or obstruct the transducer. Please inspect and remove any debris regularly to prevent it from affecting the flow measurement.
    Q

    How do I reset my account password if I lose access to my registered email?

    Please note the following installation and maintenance requirements:

    1. Avoid sharp bends or kinks in the cable. The cable contains an air tube, and excessive bending may restrict the airflow and affect water-level measurement.
    2. If sediment or sludge has accumulated at the bottom of the channel, use a raised mounting bracket to install the sensor above the sediment layer.
    3. Floating debris, such as plastic bags, may cover or obstruct the transducer. Please inspect and remove any debris regularly to prevent it from affecting the flow measurement.
    Q

    What is the standard lead time for custom production orders?

    Please note the following installation and maintenance requirements:

    1. Avoid sharp bends or kinks in the cable. The cable contains an air tube, and excessive bending may restrict the airflow and affect water-level measurement.
    2. If sediment or sludge has accumulated at the bottom of the channel, use a raised mounting bracket to install the sensor above the sediment layer.
    3. Floating debris, such as plastic bags, may cover or obstruct the transducer. Please inspect and remove any debris regularly to prevent it from affecting the flow measurement.
    Q

    What is your cancellation and refund policy for peak-season bookings?

    Please note the following installation and maintenance requirements:

    1. Avoid sharp bends or kinks in the cable. The cable contains an air tube, and excessive bending may restrict the airflow and affect water-level measurement.
    2. If sediment or sludge has accumulated at the bottom of the channel, use a raised mounting bracket to install the sensor above the sediment layer.
    3. Floating debris, such as plastic bags, may cover or obstruct the transducer. Please inspect and remove any debris regularly to prevent it from affecting the flow measurement.

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