The substring almost certainly denotes 5 meters . In industrial, electrical, and telecommunications contexts, “5m” specifies:
Typically correlates to a 5-Megapixel optical sensor integration or a specialized 5-meter physical telemetry harness, depending on whether the unit functions as an enterprise dashcam or an industrial controller. 4g-lte-5m-h07-c03-mv2.250
If you want, I can:
Another reading: = moving coil (e.g., moving-coil relay or actuator) with 2.250 V control signal. However, “mv” in lowercase often means millivolts in scientific notation, but “2.250” as millivolts (2.250 mV) would be far too low for industrial control. The substring almost certainly denotes 5 meters