A Single-Channel as well as a Pulse-Counting photoelectric photometer can be also installed on the telescope of the University of Athens Observatory.

The main characteristics of the photoelectric photometers are:

Single-Channel Photoelectric Photometer

• SPP3 Single-Channel Photon Counting Photometer

Pulse-Counting Photoelectric Photometer

• Fully computerized Pulse-Counting Photoelectric Stellar Photometer