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MS-80S Smart Albedometer


Make:  Eko                                        Model: MS-80S
✅ The MS-80S Albedometer is the best quality, and best value, albedometer available; delivering industry-leading accuracy in solar albedo and reflected solar radiation measurement.
✅ Measurand : Solar Radiation (Incoming & Outgoing)
✅ Sensor Type : Thermopile.
✅ Standards & Classifications: ISO 9060:2018 Class A.
✅ Signal Output :  RS 485 Modbus RTU / SDI-12.
✅ Supplied With : 10m cable , Calibration certificate

MS-80S Smart Albedometer:

EKO albedometers are built in a modular fashion, with two MS or S-Series pyranometers linked together using the EKO Instruments MS-Albedo Kit, as well as a glare screen and optional MV-01 heater and ventilator.

The MS-Albedo Kit, which is compatible with all S-Series pyranometers, allows customers to develop unique settings to suit their individual applications.

The MS-80S Albedometer employs two Class A MS-80S “fast-response” and “spectrally flat” pyranometers with a 5-year warranty and a competition-busting 5-year recalibration interval, each with our proprietary 4-channel analog and digital interface, which is compatible with 99% of data loggers and SCADA systems.

Level A EMI/EMC electronic surge filtering, as well as a suite of internal temperature, humidity, tilt, and roll angle sensors, assist assure optimal performance with little maintenance, resulting in increased efficiency, a higher yield, and a faster ROI.

The MS-80S Albedometer is the best-quality and best-value albedometer available, delivering industry-leading accuracy in solar albedo and reflected solar radiation measurement. It is designed for accuracy, built for reliability, and is compliant with IEC 61724-1 requirement for Class A PV monitoring systems.

Application and features of MS-80S Smart Albedometer:



✅ Solar power plants with bi-facial PV modules
✅ Outdoor material testing
✅ Agriculture research
✅ <0.5s Super-Fast response for always accurate measurements
✅ <1W/m² Record Lowest Zero Offset A, and <0.5% Lowest
✅ Designed for IEC 61724-1 compliant photovoltaic system performance monitoring
✅ Level A EMI/EMC Electronics Surge Filter & Protection
✅ 4-channel Analog & Digital Interface plus Internal Diagnostics
✅ 5 Year Warranty
✅ 5-year recommended recalibration interval

Eko (Japan)


MS-80S Smart Albedometer

ISO 9060:2018

Class A

ISO 9060:1990

(Secondary Standard)

Sub-category "Spectrally flat"


Sub-category "Fast response"



(MODBUS 485 RTU, SDI-12, 4-20mA, configurable 0-10mA / 0-1V with external optional 100Ω precision shunt resistor)

Response time 95%

< 0.5 Sec.

Zero offset A - Thermal Radiation (200W/m²)

± 1W/m²

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

± 1W/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% (Spectral selectivity ± 3%)

Temperature Response (-20°C to 50°C)

± 0.5%

Tilt Response (0-90° | 1000W/m²)

± 0.2%

Additional Signal Processing Error

< 1 W/m²

Wavelength Range (nm)

285 to 3000

Irradiance range (W/m²)

0 to 4000

Sensor Diagnostic

Relative Humidity ± 2% Temp. ± 0.1% / Tilt Angle ± 1°

Operating temperature

-40 to +80°C

Supply voltage

5 to 30 VDC

Power Consumption

< 0.2 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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