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MS-712 Spectroradiometer

Make:  Eko(Japan)    Model:  MS-712
✅ Robust design, made for outdoor solar research.
✅ Temperature controlled detector core.
✅ Excellent long term stability & low temperature dependency.
✅ High optical resolution <7nm.
✅ NIST Traceable calibration.
✅ Compatible with EKO STR-Series Sun Trackers.

A unique all-weather sensor, the MS-712 features a temperature-controlled detector, ensuring optimum performance in hot and cold conditions ranging from -10 to 40°C.

Measuring the near-infrared (NIR) range from 900nm to 1700nm, the MS-712 comes with NIST traceable calibration, a calibration uncertainty budget, and is compatible with EKO STR-Series sun trackers.

The MS-712 is commonly paired with the MS-711 as part of the WISER I system to cover the spectral range from 300nm to 1700nm (UV-VIS-NIR).

The new generation grating and rugged optical design of the diffusor and input optics in the MS-712 make it superior to any fiber-optic based spectroradiometer by eliminating common issues with mechanical vibration and handling; ideal for permanent installation or as a travelling reference.

The MS-712 has a separate power supply and can be controlled through RS232 / 422 via a PC or data logger. EKO also provides software options for device and data management and visualisation.

EKO Spectroradiometers deliver top-tier spectral measurements and detail about energy distribution (W/m2/nm), essential for effective PV or CPV cell research and performance analysis.





General Specification


Wavelength Range

900 – 1700 nm (50% points)

Optical Resolution FWHM

< 7 nm

Wavelength Accuracy

+/- 0.2 nm

Operating Condition

Operating temperature range : -10 to 40 °C
Power supply operating conditions : -10 to 40°C / 0 to 90 %RH

Field of View (FOV)

180 °


RS-422 / 232C


7.5 kg
Power supply weight : 1 kg

Power Supply

12VDC, 50VA
Power supply (Power Adapter) : 100-240VAC, 50/60Hz

Power Consumption

65 W

Dimension (mm)

300 (D) x 200 (H)
Power suply dimensions (mm) : 320 (W) x 240 (D) x 180 (H)


Analysis software WSDAc


Microsoft Windows 7/8/9/10


Display and analyze data

Temperature Response

< 5 %

Temperature Control

-5 °C

Exposure Time

10 – 5000 msec

Dome Material


Protection Level


Cable Length

10 m