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MS-80 Albedometer


Make:  Eko                                        Model: MS-80
✅ Designed to measure albedo with the lowest uncertainty across various applications, including meteorology and in solar power plants with bifacial PV modules.
✅ Measurand : Solar Radiation (Incoming & Outgoing).
✅ Sensor Type : Thermopile.
✅ Standards & Classifications: ISO 9060:2018 Class A.
✅ Signal Output : Analog (Mv)
✅ Supplied With : 10m cable (Optional cable lengths 20m, 30m, 50m), Calibration Certificate

MS-80 Albedometer:

The MS-80 Albedometer is intended to measure albedo with the least amount of error in a variety of applications, such as meteorology and solar power plants using bifacial PV modules. It is made up of two MS-80 Pyranometers and the MS-Albedo Kit with a glare shield.

With unprecedented low zero offsets, analogue output, a 5-year warranty, and a recalibration interval, the MS-80 is an ISO 9060:2018 Class A leader and the go-to choice for large weather monitoring sensor networks as well as photovoltaic system performance monitoring around the world. It also complies with IEC 61724-1.

The MS-80’s proprietary design includes an isolated thermopile detector. The diffusor enables all sun wavelengths to pass while guaranteeing that the total energy received at the detector level, including hazardous UV irradiance, is far lower than typical. It is hermetically sealed under a pure quartz diffusor and contained inside a small single-dome.

The MS-80 is superior to competitor pyranometers and best in class for accuracy, speed, and dependability in every application because to our design and dedication to quality.

MS-80 pyranometers are constructed under strict quality checks and performance evaluations. With a measurement report that is included with the sensor and a suggested recalibration period of five years, EKO offers calibration that complies with the international requirements outlined by ISO/IEC17025/9847.

Application and features of MS-80 Albedometer:



✅ PV plants
✅ Hydrology weather stations
✅ Agriculture research
✅ <0.5s Super-fast response time for always-accurate measurements, even during rapidly changing irradiance conditions
✅ Unbeatable reliability with a 5-year warranty and recommended recalibration interval.
✅ <1W/m² record lowest zero offset A, and <0.5% lowest non-stability over 5-Years
✅ IEC 61724-1 compliant photovoltaic system performance monitoring
✅ 5-year warranty
✅ 5-year recommended recalibration interval

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 offset A - Thermal Radiation (200W/m²)

±1 W/m²

Zero offset B - Temperature change (5K/hr)

±1 W/m²

Zero offset C - Total zero off-set

± 2W/m²

Non-stability (change/year)

< 0.5%/5 years

Non-linearity (100 to 1000W/m²)

± 0.2%

Directional Response (at 1000W/m² | 0 to 80°)

± 10W/m²

Spectral Error

± 0.2%

Temperature Response (-20°C to 50°C)

± 1%

Tilt Response (0-90° | 1000W/m²)

± 0.2%

Wavelength Range (nm)

285 to 3000

Irradiance range (W/m²)

0 to 4000

Operating Temperature

-40 to +80°C

Supply Voltage

5 to 30 VDC

Power Consumption

0 W

Ingress Protection

IP 67

Calibration traceability / uncertainty

ISO 17025 / WRR / < 0.7% (k = 1.96)

Standard Cable Length

10m (Optional lengths 20m, 30m, 50m)

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