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ML-01 Si-Pyranometer


Make:  Eko    Model:  ML-01
✅ An industrial grade solar sensor made for Performance ratio measurements at PV sites as well as the wide applications of the irradiance measurement in the meteorological, agricultural and environmental studies.
✅ Measurand: Solar Radiation
✅ Sensor Type: Silicon (ISO 9060:2018)
✅ Signal Output: Analog (mV)
✅ Supplied With: 5m cable (Optional 10m, 30m, 50m) ,Leveling Plate(Optional),

The compact, industrial-grade ML-01 silicon pyranometer is made for high-quality irradiance measurements. ISO 9060:2018 Class C, fast response, light but tough, the ML-01 features a mono-silicon detector with a UV-resistant cone-shaped diffuser that helps to minimise soiling and water deposition, delivering an excellent cosine response, even at low solar elevation angles.

The sensor can be mounted in the horizontal position for global horizontal measurement applications with a standard removable mounting plate with a spirit level and levelling feet.

Made in Japan and manufactured to EKO’s strict quality standards, the ML-01 comes with an optional mounting plate, a 2-year warranty, 2-year recommended recalibration interval, and unique calibration, compliant with international standards, for a cost-effective alternative to larger thermopile-based sensors, easy to integrate into any project or application; solar, agricultural, automotive and more.


Eko (Japan)



General Specification



Sensor only : 30g
With Leveling Plate : 75g


Sensor only : φ22 x 28.5mm
With Leveling Plate : φ60 x 43.5mm


0 ~100 mV

Measuring Range

0 ~ 2000 W/m2

Power Supply


Power Consumption



Class C

Long-term Instability

± 2 %


< 0.2 %

Operating Conditions

-30 to 70°C


50 µV/W/m²

Spectral Range

400 ~ 1100 nm

Zero off-set a) 200W/m²

0 W/m²

Zero off-set b) 5K/hr

0 W/m²

Complete zero off-set c)

0 W/m²

Tilt Response

0 %

Spectral Error

± 3.07 %

Temperature Response

< 0.15 %

Response Time (95%)

< 1 Sec

Protection Level

Equivalent to IP67 (IEC60529, JIS C0920)

Cable Length

5 m

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