Each UTCOMP-PRO can work without display - UTCOMP Android application may be used instead. Connection is via USB (USB OTG in your android device is required - bluetooth is not supported). Android Multimedia Station or Android Radio are recommended because they have external input for power supply (smarphone or tablet can be used too, but they will not be charged from UTCOMP). UTCOMP Android app also allows to download logs from UTCOMP-PRO internal Data-Logger and presents it on user-friendly charts.
Please note: if you plan to use UTCOMP-PRO without external display please set display autodisable mode to 0s (settings -> screens -> general -> screen autodisable = 0s)