The NR-LITE2 is a rugged net radiometer that measures the energy balance between incoming short-wave and long-wave infrared radiation relative to surface-reflected short-wave and outgoing long-wave infrared radiation. It is directly connected to a Campbell Scientific datalogger and is widely used in agriculture and hydrology applications.Read More
The NR-LITE2 includes two black conical absorbers—one facing upward and the other facing downward. The absorbers are coated in PTFE, making them resistant to weather without using a fragile plastic dome. Both absorbers are calibrated to an identical sensitivity coefficient.
The NR-LITE2 has a bubble level to ensure proper installation and a rod that deters birds from roosting on the sensor. It produces a millivolt signal that is measured directly by a Campbell Scientific datalogger.
|Sensor||Two black conical absorbers—one facing upward and the other facing downward|
|Measurement Description||Measures incoming and outgoing short-wave and long-wave radiation|
|Spectral Range||0.2 to 100 µm|
|Response Time||< 20 s (nominal)|
|Sensitivity||10 µV W-1 m2 (nominal)|
|Output Range||±25 mV|
|Measurement Range||±2000 W m-2|
|Operating Temperature Range||-40° to +80°C|
|Sensor Diameter||8.0 cm (3.1 in.)|
|Support Arm Diameter||1.6 cm (0.6 in.)|
|Support Arm Length||80 cm (31.5 in.)|
|Sensor Weight||200 g (7.0 oz)|
|Support Arm Weight||635 g (23 oz)|
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
To avoid shading/reflections and to promote spatial averaging, the NR-LITE2 should be mounted at least 1.5 m above the ground or crop canopy and away from all obstructions or reflective surfaces that might adversely affect the measurement. Campbell Scientific recommends mounting the NR-LITE2 to a separate vertical pipe at least 25 ft away from other mounting structures. The 26120 Net Radiation Sensor Mounting Kit is used to mount the NR-LITE2 to a vertical pole or a horizontal crossarm, such as the CM202, CM203, CM204, or CM206.