Thank you to all for your very helpful suggestions.
Basically what is happening is that we have developed an IOT device that, amongst other things, measures and monitors machines & equipment performance using a variety of sensors (Power, temperature, vibration, gas analyses (for around 10 gases) and particulates).
The data is captured in real time, transmitted to a web based SQL database, then email / SMS alerts are sent in real time for critical faults.
We then use Power BI to provide the analytics.
The problem is that the assets we are monitoring are not necessarily at a particular postal address so being able to identify a 3m square location would be very helpful for engineers responsible for servicing etc.