with heating and spectrally flat Class C pyranometers NR01 is a market-leading 4-component net radiation sensor, primarily used in scientific-grade energy balance and surface flux networks. It offers 4 separate measurements: global and reflected solar radiation (via pyranometers) and downwelling and upwelling longwave radiation (via pyrgeometers), using two upward-facing and two downward-facing sensors. Key advantages include its modular design with two pairs of identical sensors, its use of (WMO compliant) spectrally flat pyranometers, low weight, ease of leveling, and low solar offsets in the...

NR01 measures the 4 separate components of the surface radiation balance: global solar radiation (downward), reflected solar radiation (upward), and downwelling and upwelling longwave radiation. The solar radiation sensors are called pyranometers and the longwave sensors are referred to as pyrgeometers. Since its introduction in 2007, the NR01 4-component net radiometer has become widely used in monitoring networks. Reasons for its popularity include: From these 4 separate components, the net radiation is derived. To calculate sky and surface temperatures, it is necessary to compensate for irradiated...

Suggested use – energy balance studies – surface flux measurements – climatological networks Figure 3 Overview of NR01: 1. upfacing pyrgeometer 2. sun screens 3. leveling assembly for x- and y-axis 4. leveling assembly for x- and y-axis 5. upfacing pyranometer 6. downfacing pyranometer 7. leveling assembly for x- and y-axis 8. downfacing pyrgeometer Compliance to standards: Spectrally flat pyranometers To comply with WMO standards and for accurate reflected solar radiation measurement, it is essential to use spectrally flat pyranometers. Reflected solar radiation has a different spectrum than...

Until 2022, the U.S. National Ecological Observatory Network (NEON) was the world's largest network employing 4-component net radiometers. After extensive testing, NEON published a list of sensors. We are proud that model NR01 made it onto this list. In 2022, the Indian Defence Geo-Informatics Research Establishment (DGRE) selected NR01 for its 248-station climate monitoring network in the Himalayas. The UK Centre for Ecology and Hydrology (CEH) also included NR01 in its measurement network. NOTE: A sensor being included in a network does not constitute a formal endorsement by the network owner....

optional measurand optional measurand optional measurand optional measurand included sensors spectral range solar leveling net radiation (using all 4 sensors) global solar radiation reflected solar radiation both pyranometers: spectrally flat Class C both pyranometers: WMO Class C downward longwave radiation* upward longwave radiation* surface temperature* albedo or solar reflectance sunshine duration 2 x identical ISO 9060 spectrally flat Class C pyranometer 2 x identical pyrgeometer with 150 ° field of view angle 2-axis leveling assembly included spectral range longwave heater on pyrgeometer...

About Hukx Hukx is the leading innovator in solar radiation and heat flux sensor technology. We are proud to set the standard in high-accuracy measurement, and to be working at the heart of the energy transition. Customers worldwide rely on our bestselling pyranometers and heat flux sensors. From sensor design and selection to supply and recalibration, we support you across the entire lifecycle. Hukx is headquartered in the Netherlands, with locally owned representative sales offices in the USA, Brazil, India, China, Southeast Asia, and Japan. Let us help you select the best sensor for your application....