Analogue Second Class Pyranometer

SR05 is the most affordable digital pyranometer meeting ISO 9060 second class requirements. It measures solar radiation received by a plane surface, in W/m2, from a 180 o field of view angle. SR05 is ideal for general solar radiation measurements in (agro-)meteorological networks and PV monitoring.

  • Industry standard digital outputs: easy implementation and servicing
  • Easy mounting and levelling
  • Pricing: second class pyranometers finally affordable for large networks


SR05 Pyranometer Mounting and Leveling
Optionally SR05 has a unique ball levelling mechanism and tube mount for easy mounting and levelling on a (non-)horizontal surface or tube. As is shown in the images.

Design and Output
SR05 pyranometer employs a thermopile sensor with black coated surface, one dome and an anodised aluminium body with visible bubble level. SR05 has a variety of industry standard outputs, both digital and analogue:

  • SR05-D1A3: digital sensor with Modbus over RS-485 and analogue 0-1 V output
  • SR05-D2A2: digital sensor with Modbus over TTL and analogue 4–20 mA output
  • SR05-A1: analogue sensor with analogue millivolt output

Suggested Use

  • General solar radiation measurements
  • (Agro-)Meteorological networks
  • PV power plant monitoring

Areas of Application

  • Meteorology / surface energy flux measurement
  • Solar energy / PV system performance monitoring


  • PMF01
  • PMF02
  • CMF01



hemispherical solar radiation

ISO 9060:2018 classification

spectrally flat Class C (second class)

IEC 61724-1:2017 compliance

Class C


PV monitoring small sized, meteorology / climatology, other



Calibration uncertainty

< 1.8 % (k = 2)

Calibration traceability

to WRR

Spectral range

285 to 3000 x 10⁻⁹ m

Rated operating temperature range

-40 to +80 °C

Standard cable length

3 m

Rated operating voltage

passive sensor


ball leveling (optional)



Analogue output


Sensitivity (nominal)

10 x 10⁻⁶ V/(W/m²)

Version order codes

SR05-A1, SR05-A1-BL, SR05-A1-TMBL


• Longer cable lengths (10, 20 metres)
• Extension cable with connector pair (10, 20 metres)
• With ball levelling (Specify article number LM01 when ordering)
• With ball levelling and tube mount (for tube diameters 25 to 40 mm) (TMBL01)
• OEM versions


Download Product Brochure

Download Product Manual

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