Rainwater collected by the aluminium funnel flows into a calibrated tipping bucket. Once the preset volume is reached, the bucket tips, empties the water, and returns to its initial position, generating an electrical pulse easily detected by data loggers or pulse counters.
Available with 200 cm² or 400 cm² collector diameters, the RTD Series offers flexibility for both standard meteorological stations and hydrological monitoring networks.

Designed for seamless integration into data acquisition systems, the RTD provides multiple output options:

• Potential-free NC contact
• Digital outputs: RS485, SDI-12, MOSFET Open Drain
• Analog outputs: 4…20 mA or 0…10 V

Heated versions automatically activate around +4 °C, with PID control for digital/analog models and ON/OFF control for contact models, ensuring reliable performance even in cold or snowy climates.
A removable inlet filter and a non-stick treated collector cone simplify cleaning and reduce maintenance downtime.

Ideal for meteorology, hydrology, and environmental monitoring, the RTD Series guarantees precise and consistent rainfall data in every condition.

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DataRain-4000 is a professional electronic weighing rain gauge designed in line with WMO recommendations for high-accuracy precipitation monitoring. It combines a high-precision C3 load cell with an automatic self-emptying system, providing virtually unlimited cumulative measurement with minimal maintenance—even during extreme rainfall events up to 2000 mm/h.

Thanks to the weighing principle, the sensor delivers permanent calibration, maintaining up to 0.001 mm resolution and 0.02% weighing accuracy across the full range. Two versions are available with 200 cm² or 400 cm² collecting area, featuring ultra-low power consumption and an optional smart, energy-efficient heater controlled by an internal temperature probe for reliable all-weather operation. Multiple outputs and protocols make DataRain-4000 easy to integrate into new or existing monitoring networks.

Key benefits

• WMO-compliant electronic weighing rain gauge for professional precipitation monitoring

• Automatic self-emptying system for unlimited cumulative rainfall measurement

• Rainfall intensity range 0–2000 mm/h with up to 0.001 mm resolution

• 0.02% weighing accuracy (C3 load cell) with permanent calibration

• 200 cm² or 400 cm² collecting area options

• Ultra-low power consumption with optional smart heating for cold and mixed precipitation

• Easy integration via pulse output, RS-232/RS-485 (Modbus, ASCII/NMEA) or SDI-12, plus USB for configuration and updates

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• Wind farm monitoring
• Automatic Weather Stations (AWS)
• Buildings, constructions and bridges control
• Ports, airports and heliports
• Road and railway tunnels

Beside the measurement of wind speed and direction, it provides U-V-W Cartesian components and Wind Gust values. With integrated heating, it prevents the whole detection area (sensors, arms and arms supports) from the accumulation of snow and ice formation, allowing accurate measurements in all environmental conditions.

Moreover, the AISI 316 housing provides durability and protection, making it suitable for measurements in the toughest conditions.

The anemometer integrates a barometric pressure sensor.

Available outputs:

• RS232, RS485 and RS422 isolated outputs, with NMEA, Modbus-RTU and ASCII proprietary protocols.
• SDI-12 isolated output.
• Three analog outputs, for wind speed and direction or for wind U-V-W cartesian components. The type of analog output depends on model.

The anemometer satisfies the requirements of the following standards:

• MIL-STD-810G Method 509.6 and EN ISO 9227:2017 (salt fog anti-corrosion test)
• MIL-STD-810F Method 521.2 (anti-icing/freezing rain test)
• EN 60068-2-6:2008 / IEC 60068-2-6:2007 (vibration resistance test)

Supplied with PC software, for configuration and displaying of the real time measurements.

All instrument sensors are factory-calibrated and do not require additional interventions of the user.

WUS03FA; WUS03FW; WUS03FX; WUS03FY

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Available lengths: 5 m (CPM12AA4.5) and (CPM12AA4.10).

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Available lengths: 5 m (CPM12AA8.5) and 10 m (CPM12AA8.10).

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The principle of a tipping bucket rain gauge is simple: depending on the quantity of rainfall, the tipping bucket mechanism fills and empties. Every tipping action operates a reed contact: in this way counting the quantity of the rainfall. This means that the tipping bucket has one enormous advantage: it needs no power supply to operate. Power supply is only a necessity when circumstances demand heating because of low environmental temperatures.

Reading the number of counts, in other words reading the rainfall, can be done locally by using a local (battery operated) datalogger such as the HD2013-DB. But it is also possible to communicate directly the results through one of our dataloggers of the HD33 series. The built-in 4G/3G/GPRS modem makes it easy to upload the data directly to one of our cloud applications or to your own secured server.

HD2013 is available as well with optional analog output at choice between 4…20 mA or 0…10 Vdc (to be specified when  placing the order) or with optional SDI-12 digital output. When ordering, the rain gauge is completely setup to be used.

Easy to install, adjustable feet and leveling device integrated. Bird spikes and accesories for raised mounting available.

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Main characteristics:

• 5 analogue voltage or current outputs, with different measuring ranges.
• RS232 and Multidrop RS485 Serial Communication interfaces.
• Configurable output rate of digital output data string.
• Configurable average periods 1÷60 s and 1÷60 min. for all output quantities.
• Processing algorithms and validation of the raw measurement signals to provide a measure of greatness anemometer with ± 1%.
• Digital high frequency data acquisition mode with 50Hz data output.
• Self diagnostics with error checking and report.
• Reliability and accuracy throughout the measuring range without further calibration.
• Flexible, easy-to use demo software, configurable according to the user’s needs through Computer interface.
• User interface for managing the setup and software upgrade via RS232 or RS485.
• Compass magneto sensor for automatic alignment to magnetic north.
• No moving parts, maintenance costs and reduced service.
• Robust construction, suitable to operate continuously in harsh conditions.
• Low power consumption.

Available as well with heating option (HD2003R): built-in heating device of sonic transducers, to prevent ice and snow formation. Assures correct measurements even in presence of sleet or snow.

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Manual and datasheet are still available in the download tab.

The version with additional measurement of temperature, relative humidity and atmospheric pressure is still available. See product code HD2003.

If you are looking for our new 3 axis ultrasonic anemometer, please refer to the new AELOUS-3 series.

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