NexSens Flood Warning Systems

Flood warning systems save lives, protect property and limit damage to infrastructure by monitoring rainfall and water levels and alerting when conditions approach dangerous levels. An effective flood warning system enables authorities to take appropriate action such as evacuation and control of dams in advance of a flood event, often leading to much less catastrophic outcomes when severe weather strikes.

Effective flood monitoring and risk mitigation is achieved through a network of flood warning stations installed at various points within a watershed or on a body of water. Monitoring stations log both rainfall and water levels and provide advanced warning of dangerous conditions.

The X2 data logger is the central component of NexSens automated flood warning systems. It is compatible with a wide range of sensor types and manufacturers and can transmit real-time data to the WQData LIVE web datacenter via radio, cellular, or satellite telemetry. WQData LIVE has a suite of data management tools and alerts via email or SMS text message.

Flexible mounting options for the X2 simplify installation on bridges, dams, piers, levees and other structures. Power is supplied with SP10 solar power packs or connection to mains power.

Sensors typically integrated into NexSens flood warning systems include YSI H-3401 tipping bucket rain gauges and the VEGAPULS C 23 radar level sensor for non-contact level measurement, but nearly all industry-standard weather and level sensors are supported.

Standard Configuration

YSI H-3401 Tipping Bucket Rain Gauges

The YSI H-3401 is a precision tipping bucket rain gauge with optional SDI-12 output for use in hydro-meteorological applications.

  • Two removable stainless steel funnel screens
  • Rustproof, powder painted aluminum enclosure and cast base
  • Built in microprocessor automatically corrects errors

NexSens SP-Series Solar Power Packs

The SP-Series Solar Power Packs feature a solar panel, regulator, and battery housed in a weather tight enclosure.

  • Designed for use with the NexSens X2 data loggers
  • All components are weather tight and designed to withstand harsh conditions
  • Adjustable angle to 0, 30, 45

X2 Environmental Data Logger

NexSens’ flagship data logger offering the latest in real-time monitoring technology with wireless communication, a large plug-and-play sensor library, and ultra-low power consumption.

  • Watertight aluminum and polycarbonate housing
  • Underwater connections made with simple thread-in waterproof connectors to reduce complications and errors
  • Wireless, remote communication options include WiFi, 4G LTE cellular, CAYT-M1/NB2 cellular, iridium satellite, and 2.4GHz and 900MHz radio.

VEGA VEGAPULS C 23 Radar Water Level Sensor

The VEGAPULS C 23 is the ideal radar sensor for non-contact level measurement in rivers, lakes, channels, and other environmental applications.

  • Measuring range up to 30m with ≤ 2mm accuracy
  • Low power consumption with flexible operating voltage from 8 to 30 VDC
  • Integrated Bluetooth for configuration and SDI-12 output for data logger interface

More information from NexSens Technology

Servicing, Calibration and Support

Imbros’ local engineering department can service, repair and calibrate your instrument without expensive shipping costs or wait times.


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    Additional information

    Hull Dimensions

    48" (121.92 cm) outside diameter; 28" (71.12 cm) tall

    Tower Dimensions

    50" (127.00 cm) tall, 7/8 tubular

    Data Well Dimensions

    10.3" (26.16 cm) inside diameter; 27.5" (69.85 cm) tall


    300 lbs. (136.08 kg)


    1250 lbs. (566.99 kg)

    Hull Material

    Cross-linked polyethylene foam with polyurea coating and stainless steel deck

    Hardware Material

    316 stainless steel

    Mooring Attachments

    1 or 2 point, 3/4" eyenut

    Solar Panel

    (3) 55-watt 12 VDC solar panels