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NK Brands

Nielsen-Kellerman helps people succeed in their profession or passion by providing mission-critical measurements, information, insight, and guidance whenever and wherever needed. Nielsen-Kellerman's eight brands are each recognized as the preeminent choice for their applications from meteorology to military, firefighting to farming, and rowing to research. Learn more about each of the NK brands below.

NK's first product, the CoxBox amplifier system for rowing, was originally developed in 1978 by founders Richard Kellerman and Paul Nielsen. Prompted by a local rowing coach, Richard and Paul invented a single portable unit that combined a powerful voice amplifier, stroke meter, and timer for coxswains that could stand up to the harsh marine environment of a rowing shell. This product, now in its fifth generation, is without a doubt one of the most iconic pieces of rowing gear in the sport today. NK remains the technical leader in human-powered watersports with advanced systems for measuring rower output and technique, as well as reliable performance computers for sculling, canoeing, kayaking, and stand-up paddleboarding. The majority of NK Sports products are built in NK's USA facility with select accessories sourced overseas.*

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After years of requests from rowing coaches frustrated with megaphones that failed after their first drop or hard rain, NK developed the Blue Ocean Megaphone. With a patented ergonomic design and long-lasting removable battery pack, the Blue Ocean Megaphone is designed to be the last megaphone anyone will need to buy. With MIL-STD-810G drop resistance and IP-67 waterproof sealing, the Blue Ocean Megaphone provides crystal clear sound at long distances and can even float when dropped into water. The Blue Ocean Megaphone has been adopted by military, tactical, and government users for crowd control as well as many other users needing reliable voice amplification. Blue Ocean Megaphones are built entirely in the USA.*

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In 1996 the NK team turned their inventive capabilities to measuring environmental conditions, and the first Kestrel Weather and Environmental Meters were introduced. Kestrel meters are handheld, portable, and waterproof units that measure wind speed, temperature, humidity, pressure, and direction along with dozens of other related weather parameters. After 25 years of relentless focus and product innovation, the Kestrel lineup features dozens of models that are precisely designed to meet the environmental measurement needs of professionals and hobbyists in the following applications and many, many more: outdoor recreation, meteorology, research, education, farming, ranching, heat stress management, construction, wildland firefighting, hunting, law enforcement. The rugged durability and accurate measurements of the Kestrel line are counted on to perform under extreme conditions. All Kestrel Meters are built in the USA.*

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Further specialization led NK to develop Kestrel Ballistics Meters. Combining the trusted measurement of key environmental parameters that affect long-range bullet flight with powerful predictive ballistics calculators provides precise aiming solutions for long-range shooters and hunters. The Kestrel Ballistics line features entry-level products offering targeting solutions up to 800 yards away and Elite units guiding shots up to two miles away. The Kestrel Ballistics line of meters helps shooters hit their target on the first shot. All Kestrel Ballistics Meters are built in the USA.*

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In 2020 NK expanded its presence in the ballistics space by acquiring the MagnetoSpeed product line. MagnetoSpeed products include barrel-mounted shooting chronographs for determining bullet velocity, target hit indicators, and barrel coolers. The MagnetoSpeed team began offering their innovative products to the shooting market in 2013. Many Kestrel Ballistics customers had a MagnetoSpeed chronograph in their range bag, so bringing these products under the NK roof made perfect sense. NK is committed to developing and innovating the MagnetoSpeed line with the same focus on practical, affordable shooting solutions. All MagnetoSpeed products are built in the USA.*

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Ambient Weather has been a market leader in weather station and environmental monitoring instruments since 1998, offering Ambient branded and curated third-party products for sale at AmbientWeather.com and the Ambient Amazon store. Ambient's founders always offered products that combined highly desirable features with a value price, supported by premium customer service, support, and online data visibility. Nielsen-Kellerman acquired Ambient Weather in late 2019 and has remained true to that mission. All Ambient Weather branded products are built in China.

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RainWise and KestrelMet are NK's two brands of professional-grade weather stations for consumer, enterprise, and industrial applications. RainWise was established in 1974 in Bar Harbor, Maine, and was acquired by Nielsen-Kellerman in 2020. Comprising more than 50 rain and temperature gauges, weather stations, PV weather monitors, sensors, and related software, RainWise offers highly customizable systems to meet buyers' needs with specific configuration requirements.

The KestrelMet brand builds upon the same technology and components to offer pre-configured weather stations that take just minutes to buy, install and set up. KestrelMet weather stations are designed for consumer, business, and industry buyers who need to monitor weather conditions for compliance, safety, preparedness, and awareness. All RainWise and KestrelMet products are built in the USA.*

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*Products built by NK in the USA include US and overseas sourced components. Learn more here.