Your video shows a PMR transceiver being keyed up very close to an emergency light, triggering the light on. The relatively high power output of a PMR can easily interfere with other equipment at close range, even when both the transceiver and the other equipment are made in compliance with applicable RFI (radio-frequency interference) regulations. The instructions, and the advice from organisations such as the FCC, usually state that there is no warranty of immunity to interference and it is up to the user to test the operation of devices and move them apart or reduce their radiated power if interference is experienced.
In the case of your video, one would not normally operate a PMR directly adjacent to an emergency light. It might be that a light of better or different design would be immune to the RF but as the demonstration is taking place outside normal operating parameters, it's not very surprising either way. The same might be true of the logger, or there might be some sensor wiring that is not sufficiently shielded, or some specific installation flaw that we can't identify from afar. I suggest talking to the manufacturers / installers of the affected equipment, perhaps reducing the TX power of the radios in the meantime to make the interference less severe.
