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Boothwyn, PA - December 21, 2021


Rainwise weather monitoring systems are now part of the KestrelMet® line of rugged weather stations. You’ll find what you’re looking for and more information on this transition at

Uniting Rainwise under the KestrelMet brand introduces a tremendous opportunity for expanding the offerings of high-quality, professional-grade weather monitoring equipment, customized solutions, and connectivity capabilities.

In 2020, Rainwise became part of the Nielsen-Kellerman® (NK) family of weather brands joining Kestrel® Instruments and Ambient® Weather. NK is a market leader in manufacturing tools for environmental monitoring across a wide range of professions. NK's acquisition of RainWise confirms its commitment to becoming a full-range provider of weather instrumentation.

"Kestrel and RainWise have parallel histories in innovation in weather measurement and commitment to accuracy, reliability, and US manufacturing. We greatly admire their reputation for building quality products that perform for years and years in the field. Putting our companies together made perfect sense."
Alix James, Nielsen-Kellerman's CEO.

The strategic combination of the capabilities of Nielsen-Kellerman and RainWise expands NK's ability to deliver accurate weather measurements and weather monitoring solutions to customers wherever and whenever desired – in remote locations, the factory, or the field.

strong>About Nielsen-Kellerman’s Professional Weather Division

Nielsen-Kellerman (NK) is the parent company for a family of measuring and monitoring technology brands focused on providing the accurate performance and weather data needed for safety, business success, research and defense as well as athletic and recreational activities. NK specializes in building products that perform in the most challenging outdoor environments from the water to the desert. NK's largest division is the weather division, encompassing Kestrel® Weather and Environmental Meters, KestrelMet® Weather Stations, RainWise® Rain Gauges, Ambient Weather® Stations and internet dashboards, and PVMet Solar Monitoring Systems. NK makes the majority of its products in the USA and is proud to be both a recognized leader in Lean Manufacturing and an award-winning top workplace. For more information, visit

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