In this page you can find ancillary measurements performed by instruments co-located with the sun-sky radiomter for each site . Currently the following sites are availables.
| Instrument Type | Institute | Location | County | Country | Responsable |
| POM02 | ARPA Aosta | Aosta | Aosta | Italy | H. Diemoz |
| POM02 | CNR-IMAA | Potenza | Potenza | Italy | G. Pappalardo |
| POM01 | CNR-ISAC | Rome | Rome | Italy | M. Campanelli |