< Back

MS-40 Albedometer

Made with two MS-40 Pyranometers, as well as a special albedo kit featuring a glare screen, this innovative unite measures albedo in routine applications.

It is ideally used in solar power projects with bi-facial PV modules, as well as in meteorological applications.

Our MS-40 is an excellent example of an ISO 9060:2018 Class C pyranometer, based on the EKO universal sensor platform. It is also the most cost-effective irradiance sensor available, to measure solar irradiance across the full solar spectrum – use it for agro-meteorological networks or small-scale PV sites where solar radiation must be taken seriously.

Manufactured in a consistent way and followed by strict quality inspections and performance evaluations, this sensor has a 5-year warranty and 2-year recommend re-calibration interval period. It is also no longer necessary to change the desiccant.


  • SO 9060:2018 Class C (Second class)
  • Sub-category "Spectrally flat"
  • Analog output
  • ISO 17025 certified calibration
  • Optional ventilator MV-01
  • 5 year warranty
Albedometers Sydney


Specifications (Typical) MS-40
ISO 9060:2018 Class C
ISO 9060:1990 Second Class
Sub-category "Spectrally flat" Compliant
Sub-category "Fast response" Not Compliant
Output Analog (mV)
Response time 95% < 18 Sec.
Zero off-set a) 200W/m² +/- 12 W/m²
Zero off-set b) 5K/hr +/- 5 W/m²
Complete zero off-set c) +/- 17 W/m²
Non-stability change/1 year +/- 1.5 %
Non-linearity at 1000W/m² +/- 1 %
Directional response at 1000W/m² +/- 20 W/m²
Spectral error +/- 0.2 %
Temperature response -10°C to 40°C +/- 3 %
Temperature response -20°C to 50°C +/- 4 %
Tilt response at 1000W/m² +/- 1 %
Sensitivity Approx. 10 µV/W/m²
Impedance 100 Ω
Operating temperature range -40 - 80 °C
Irradiance range 0 - 2000 W/m²
Wavelength range 285 - 3000 nm
Ingress protection IP 67
Cable Length 10 m
Cable Length 20 / 30 / 50 m
Ventilation unit MV-01
Albedo mounting kit MS-albedo Kit

Ask a Quick Question