The OMNIAlog logger for FLX-Rail has a fairly high power consumption due to the router.
If OMNIAlog is set to send data through the router after each acquisition (so every 5 minutes) it needs to be powered from the network (e.g. 220Vac)
If OMNIAlog is set to send data through the router once a day, it can be powered by solar or grid power.