Set the standard with the PMO8 radiometer

The ultimate reference instrument for unmatched accuracy and reliability

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.

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.

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.

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 customers

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

News

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 »
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.

Read more »
Mounting adaptor now available

Our mounting adaptor for the PMO8 sensor unit Fliana is now available. It can mount up to two sensors to the most popular sun trackers STR-22G, Solys2 and INTRA. More information can be found here.

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SnowImager in action
SnowImager website is online

Davos Instruments is collaborating with the WSL institute for snow and avalanche research (SLF) to build new instrumentation to determine physical snow properties based on optical methods. Our new instrument, the SnowImager now has its own website presenting methods and results from the field. Check it out at www.snowimager.ch.

Read more »
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 »
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.

Read more »
Mounting adaptor now available

Our mounting adaptor for the PMO8 sensor unit Fliana is now available. It can mount up to two sensors to the most popular sun trackers STR-22G, Solys2 and INTRA. More information can be found here.

Read more »