The HDI is a very low-power, maintenance-free, totally sealed and mechanically ultra-robust acoustic instrument with no mobile parts. It is able to detect hailstones between 0.5 and 7.5 cm diameter and willsurvive the most extreme hail episodes. The sensing part of the instrument is a three layer polished stainless disc supported by an unbreakable stainless-steel arm. Impacts of hailstones (or any other lithometeors in the same range of kinetic energy) induce a measurable change in internal acoustic pressure.
It features continuous or pulse analog voltage outputs and supports SDI-12 communication, serial RS232, and Modbus RTU RS485 (using an optional adapter). The full configuration of the sensor can be customized at any time with a Plug-and-Play PC connection or remotely, using serial commands.
Extremely robust and reliable acoustic hail sensor
The HDI sensor measures the impact of individual hailstones on a stainless-steel disc using a special acoustic detector, signal processing, and calculation. The sensing surface is a 200-mm-diameter omnidirectional head containing the electronics of the system. The HDI can detect hailstones between 0.5 and 7.5 cm and up to 25 hits per second. Comparable to so-called disdrometry, it can distinguish between 15 size classes. The size distribution is reported as a percentage of all detected impacts according to the classification table.
Hail sensor HDI
The hail sensor HDI is shipped with a robust, stainless steel mounting arm. With the included USB converter, the sensor can be directly connected to a PC and configured for your needs.
Fields of application
The HDI is the sensor of choice wherever damage by hail is of concern: in farming on fields and in greenhouses, on infrastructures like facades, roofs, and solar panels, or on vehicles.
Application and features of HDI-Hail Sensor:
|✅ Meteorology (hail, solid precipitation, lithometeors)
✅ High resolution hail monitoring and warning
✅ Roadside, railway, airport protection
✅ Building and infrastructure surveillance and insurance
✅ Land management
✅ Solar power plants
✅ Applied scientific research
|✅ Extremely robust and reliable
✅ Acoustic hail sensor with size classification