NR LITE2 – Net Radiometer

The NR LITE2 is a net radiometer designed to measure net radiation—that is, the difference between incident and reflected shortwave and longwave radiation. This parameter is key to determining the energy available for evaporation, photosynthesis, and surface–atmosphere heat exchange, and is essential in meteorology, agrometeorology, hydrology, and heat balance studies.
The radiometer combines high sensitivity with a robust, weather-resistant design and is optimized for long-term outdoor measurements.

Net radiometer for measuring net surface radiation
Sensor based on the thermocouple principle
Low drift, stable output signal
Outdoor, weather-resistant design
Analog and digital outputs
Easy integration into systems and telemetry

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Description

The Net radiometer NR LITE2 uses a thermocouple sensor with a special filtering system that allows for the simultaneous detection of both short-wave and long-wave radiation and the difference between them. The resulting signal corresponds to the net radiant energy flux from the measured surface.
The device is equipped with analog outputs (e.g., 0–1 V / 4–20 mA) and often includes digital communication capabilities for connection to telemetry networks and data loggers. The design operates reliably in outdoor environments and has low thermal dependence.

Applications

Meteorological radiation measurements
Surface energy balances
Hydrological and agrometeorological applications
Microclimate and heat flux research
Monitoring of temperature and radiation balances

Technical specifications

Technical Specifications	NR LITE2
Measurement Principle	thermocouple net radiometer
Measured Quantities	short-wave & long-wave radiation, net radiation
Output	analog (0–1 V / 4–20 mA), digital (*)
Operating temperature	–40 °C to +80 °C
Protection	IP65/68 (outdoor use)
Calibration	performed by the manufacturer
Stability	low drift

Downloads

Price List Cenik 2026 V101

Documents

Manual Datasheet

Related products

CNR4 - Net Radiometer

The CNR4 net radiometer is used to measure the radiation balance between incident and reflected short-wave radiation and long-wave infrared radiation. The instrument contains two pyranometers for measuring shortwave radiation and two pyrgeometers for measuring longwave radiation. The radiometer provides four separate outputs corresponding to the individual components of the radiation balance. This allows for the precise evaluation of the surface energy balance, albedo, or energy exchange processes between the surface and the atmosphere.

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