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MS-80 Pyranometer


Make:  Eko       Model: MS-80
✅ ISO 9060:2018 Class A (Secondary standard)
✅ <0.5s Super-fast response time for always-accurate measurements, even during rapidly changing irradiance conditions
✅ Unbeatable reliability, with a 5 Year Warranty & Recommended Recalibration Interval
✅ Designed for IEC 61724-1 compliant photovoltaic system performance monitoring
✅ Optional MV-01 Ventilator & Heater

Fast-Response and Spectrally Flat, with unprecedented low zero offset, analog output, and a 5-year recalibration interval, the MS-80 is an ISO 9060:2018 Class A leader and the IEC 61724-1 compliant go-to option for scientific research, industrial applications, photovoltaic system performance monitoring and large weather monitoring sensor networks around the world.

The patented design of the MS-80 features an isolated thermopile detector. Hermetically sealed under a pure Quartz diffusor and housed within a compact single-dome, the diffusor allows all solar wavelengths through while ensuring that the total energy received at the detector level, including harmful UV irradiance, is substantially lower than usual.

Our design, and commitment to quality, means that the MS-80 is better than competing pyranometers, best in class for accuracy, speed and reliability for every application.


Eko (Japan)




ISO 9060:2018: Class A
ISO 9060:1990: (Secondary Standard)
Spectrally flat
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

Long-term Instability

Non-stability change/1 years: < 0.5%/5 years


Non-linearity at 1000W/m²: +/- 0.2 %

Spectral Error

+/- 0.2 %

Temperature Response

Temperature response -20°C to 50°C: ± 1%

Tilt Response

Tilt response at 1000W/m²: +/- 0.2 %

Spectral Range

285 to 3000(nm)

Measuring Range

0 to 4000(W/m2)

Operating Conditions

-40 to 80°C

Power Supply

5 – 30 VDC

Power Consumption

0 W

Protection Level

IP 67

Cable Length

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