The extremely robust and zero-maintenance RainFlow RF4 sensor is an evolving acoustic instrument for the comprehensive measurement of the type, amount, intensity and structure of liquid and solid precipitation

It is a very low-power, maintenance-free and totally sealed acoustic instrument with no mobile parts.

The instrument includes a dedicated analog conditioning module, a digital I/O module and an analog restitution module that can be connected conveniently to almost any external central unit (data logger, industrial module interface, instrumentation DAQ, USB port).

It features continuous or pulse analog voltage outputs and supports SDI-12 communication, serial RS-232, and Modbus RTU RS485 (using an optional adapter).

The sensing part of the instrument is an anti-abrasion, anti-adhesion and anti-rime coated hemisphere supported by a strong stainless steel arm.

It measures and distinguishes liquid and solid precipitation. It is especially optimized for rain measurement and hail detection.

The full configuration of the sensor can be customized at any time, in a non-volatile memory, with a Plug-and-Play computer connection thanks to the universal USB dongle accessory provided with the sensor and the free ISAW-Toolbox software suite.

• Non obstructable
• Instrument with no mobile parts – totally sealed acoustic instrument
• Universal mounting kit available
• Omni-directional – even under the highest winds
• Corrosion free and resistant to the highest winds and the most extreme conditions
• Plug-and-Play or totally configurable – microcontroller inside
• Can be connected to almost any external unit
• SDI-12 and IoT compatible – internal memory
• Swiss made

TYPICAL USE

• Monitoring of rain and hail precipitation
• High-resolution disdrometry (number and size of raindrops)
• Offshore weather buoys
• Forecast of soil erosion

Fields of Application

• Weather stations
• Agriculture
• Hydrology
• Control of land and air traffic
• Dam surveillance
• Meteorological and scientific applications