TESS-W Photometer

Designed by astronomers,
compact, inexpensive

If you want to purchase one photometer contact us:


The Telescope Encoder and Sky Sensor (TESS-W) is the first model of TESS photometers, compact devices to monitor sky brightness every night developed under Stars4All project.

TESS-W photometer sending data today


  • TESS photometer is mounted on a weatherproof enclosure (83x60x32 mm). Wherever there is electricity and WIFI you can install it and get the measures online trough the remote observatory.


  • Its temperature and IR sensor will let you know whether the sky is clear or cloudy.



PAPER. International Journal of Sustainable Lighting 2016

POSTER. RIA- SpaceTec 2018