Set the standard with the PMO8 radiometer

The ultimate reference instrument for unmatched accuracy and reliability

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Fields of application

Our high precision reference radiometers serve as standards for the calibration of field instruments for solar irradiance measurements such as pyranometers and pyrheliometers.
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Our Services

We provide full maintenance and support for your solar radiometer.

In situ validation kit

Lease a PMO8 radiometer for recalibrating your instruments.

Repair and maintenance

Let’s keep your solar radiometer in peak condition.

PMO6 upgrade

Upgrade your PMO6 radiometer with our Linard control unit.

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Radiometry knowledge

Thanks to our strong academic background, we are aiming to advance solar radiometry and share new insights with the community. Find selected articles and links to relevant publications.
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About us

Davos Instruments is a spin-off from PMOD/WRC, established in 2016 and based in Davos, Switzerland. We specialise in the development of high-precision measurement equipment for solar radiometry and provide engineering services in related fields.

Our interdisciplinary team comprises engineers and physicists with extensive expertise in both ground- and space-based solar radiometry, as well as mechanical and electrical engineering.

Our story »

Our customers

Our customers include WMO radiation centres, research and metrology institutes, renowned manufacturers and calibration laboratories in the field of solar radiometry.
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News

Pyroelectric Detectors at METAS
A Visit to METAS

Davos Instruments is visiting METAS (the Swiss Federal Institute of Metrology) to complete the delivery of dedicated pyroelectric detectors.These detectors will be used as a working reference for calibrating optical power meters for fibre optics in the micro watt range at the METAS photonics laboratory. Their flat spectral response makes them ideally suited to this task. They are calibrated against the cryogenic primary standard radiometer at METAS to ensure traceability to the International System of Units (SI).

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14 November 2025
IPC-XIV
The IPC has come to a close

The IPC-XIV has come to a close, and we are looking back on a successful Pyrheliometer Comparison. Several days of perfect measurement conditions and an interesting seminar made it an exceptional experience. We had a wonderful time and engaged in many fruitful discussions. Furthermore we have celebrated a special moment together: the five-year anniversary of the PMO8. Thank you to everyone who participated, and to the PMOD/WRC staff for organizing the event.

Read more »
13 October 2025
IPC-XIV

The 14th International Pyrheliometer Comparison (IPC) in Davos, hosted by PMOD/WRC (22. Sep – 10. Oct 2025) is comming up soon. The registration is open at the PMOD/WRC website. We are looking forward to meeting you (and your instruments) there. We will offer informal check-ups and software updates to all participating Linard control units, as well as some hands-on refresher courses on radiometer operation.

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5 May 2025
Laboratory Comparison at the University of Colorado

Davos Instruments is comparing a PMO8 radiometer to the irradiance reference of the Laboratory for Atmospheric Science (LASP) and Space Physics at the University of Colorado in Boulder. LASP’s total solar irradiance radiometer facility (TRF) allows to compare the PMO8 to the NIST traceable reference radiometer NACR5 (White et al. 2022) in a indoor laboratory environment.

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19 September 2024
Pyroelectric Detectors at METAS
A Visit to METAS

Davos Instruments is visiting METAS (the Swiss Federal Institute of Metrology) to complete the delivery of dedicated pyroelectric detectors.These detectors will be used as a working reference for calibrating optical power meters for fibre optics in the micro watt range at the METAS photonics laboratory. Their flat spectral response makes them ideally suited to this task. They are calibrated against the cryogenic primary standard radiometer at METAS to ensure traceability to the International System of Units (SI).

Read more »
14 November 2025
IPC-XIV
The IPC has come to a close

The IPC-XIV has come to a close, and we are looking back on a successful Pyrheliometer Comparison. Several days of perfect measurement conditions and an interesting seminar made it an exceptional experience. We had a wonderful time and engaged in many fruitful discussions. Furthermore we have celebrated a special moment together: the five-year anniversary of the PMO8. Thank you to everyone who participated, and to the PMOD/WRC staff for organizing the event.

Read more »
13 October 2025
IPC-XIV

The 14th International Pyrheliometer Comparison (IPC) in Davos, hosted by PMOD/WRC (22. Sep – 10. Oct 2025) is comming up soon. The registration is open at the PMOD/WRC website. We are looking forward to meeting you (and your instruments) there. We will offer informal check-ups and software updates to all participating Linard control units, as well as some hands-on refresher courses on radiometer operation.

Read more »
5 May 2025
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