NR Lite2 is designed for routine measurements of net solar radiation. Net radiation is the balance between incoming and outgoing radiation in outdoor conditions. The sensor measures solar and far infrared radiation balance.
NR Lite2 has a thermopile sensor and it consists of 2 Teflon-coated, weather-resistant black conical absorbers. The voltage output is proportional to the net radiation. NR Lite2 is virtually maintenance-free as it does not require fragile plastic domes.