For those not wanting to click on a link while having no idea what's at the end of it ...

It's an 'invitation' from the AA to try out 'AA connect', which is a 'simple plug in device packed with features' which will (apparently) 'monitor your vehicle health', 'alert you of a failing battery before it lets you down', 'make you aware of potential issues before they happen', and 'help you get going faster should you breakdown'

It should be noted by all that the cynic in me has spotted that this is a '12 month FREE trial'.

Sounds to me like it's a cheapo chinese generic diagnostic, 're-branded' ... but, as I've already said, I am a bit of a cynic ...