Smart Pyranometer SMP11 – Meteorology & Solar Energy

Kipp and Zonen – SMP11 Pyranometer

The SMP11 pyranometer Exceeds the requirements for ISO Secondary Standard pyranometers.

The SMP11 is a ‘smart’ version of the CMP11 making it is the ideal choice for SCADA integration and high-quality solar radiation monitoring in meteorology and solar energy.

  • External replaceable desiccant drying cartridge.
  • 5 year warranty
  • up to 100m cable option available
  • Modbus RS485 output and Analogue output.
  • Spectrally flat Class A pyranometer



Kipp and Zonen SMP11 pyranometer.

The SMP11 smart pyranometer combines world-class sensor technology and industry-standard digital (RS485 Modbus) and analogue (0-1V or 4-20mA) amplified outputs.

Based on the tried and tested CMP 11 technology the SMP11 adds Modbus® interface. This improves response time and temperature corrected measurement data.

The wide and low power supply range from 5 to 30 VDC makes integration in meteorological stations easy.

All SMP pyranometers have identical sensitivity and connections. As such exchanging one SMP for a similar model SMP is easy and straight forward. This makes the recalibration process simple and fast, reducing lost data.

SMP11 measures incoming global solar radiation with a 180° field of view. Ideal for solar radiation measurements in both Meteorological and Solar Energy applications that require the Modbus protocol or amplified outputs.


Spectral range (50% points) 285 to 2800 nm
Response time (63%) < 0.7 s
Response time (95%) < 2 s
Zero offset A < 7 W/m²
Zero offset B < 2 W/m²
Directional response (up to 80° with 1000 W/m² beam) < 10 W/m²
Temperature dependence of sensitivity (-20 ºC to +50 ºC) < 1 %
Analogue output (-V version) 0 to 1 V
Analogue output (-A version) 4 to 20 mA
Digital output 2-wire RS-485

The SMP11 can be mounted either horizontally to measure global irradiance, or for the solar sector, mounting at the plane of array (same angle as the panels) will give POA or tilted irradiance. This data can be crucial in comparing of solar panel outputs across a large solar field.