Menu Close

MS-80 Albedometer


Make: Eko (Japan)

Model: MS-80 Albedometer

  • ISO 9060:2018 Class A (Secondary standard)
  • Sub-category “Fast response” and “Spectrally flat”
  • Quartz diffusor technology
  • ISO 17025 certified calibration
  • 5 year warranty
  • 5 year recommended recalibration interval

MS-80 Albedometer consists of two MS-80 pyranometers and a special albedo kit with a glare screen to measure the albedo with the lowest uncertainty.

It is used in solar power plants with bifacial PV modules and in meteorological applications.

MS-80 is a unique pyranometer compliant to the “Fast reponse” and “Spectrally flat” sub-category under ISO 9060:2018 Class A. The innovative patented design was inspired by the combination of latest technologies and state-of-the-art thermopile sensor, enabling a breakthrough in unprecedented low zero-offset behavior and fast sensor response.

The compact sensor with a single dome, based on an isolated thermopile detector and Quartz diffusor is immune to offsets and integrates all optional value-added functions such as a ventilator, heater and different industrial interfaces. The heater and ventilator are suggested, particularly in areas impacted by dew, frost, snow, and dust.

The MS-80A is an MS-80 with a built-in 4-20mA converter and MS-80M with built-in MODBUS converter. They are compatible with the industrial output standards. Due to the ultra-low temperature dependency and exceptional non-linearity characteristics, the converter guarantees an optimal sensor performance, under any environmental conditions.

The MS-80 pyranometers are manufactured in a consistent way followed by strict quality inspection and performance evaluation. For each sensor, the directional response and temperature dependency are measured and validated through a measurement report that comes with the sensor. EKO provides a unique calibration compliant to the international standards defined by ISO/IEC17025/9847.

The sensor has a 5 year warranty, 5 year recommended re-calibration interval and no longer the requirement for the desiccant to be changed.


Eko (Japan)


MS-80 Albedometer

ISO 9060:2018

Class A

ISO 9060:1990

(Secondary Standard)

Sub-category "Spectrally flat"


Sub-category "Fast response"



Analog (mV)

Response time 95%

< 0.5 Sec.

Zero off-set a) 200W/m²

+/- 1 W/m²

Zero off-set b) 5K/hr

+/- 1 W/m²

Complete zero off-set c)

+/- 2 W/m²

Non-stability change/5 years

+/- 0.5 %

Non-linearity at 1000W/m²

+/- 0.2 %

Directional response at 1000W/m²

+/- 10 W/m²

Spectral error

+/- 0.2 %

Temperature response -10°C to 40°C

+/- 1 %

Temperature response -20°C to 50°C

+/- 1 %

Tilt response at 1000W/m²

+/- 0.2 %


Approx. 10 µV/W/m²


< 45000 Ω

Operating temperature range

-40 – 80 °C

Irradiance range

0 – 4000 W/m²

Wavelength range

285 – 3000 nm (50% points)

Ingress protection IP


Cable length

10 m