...I am responding on behalf of the Aruba outdoor product manager...
Aruba products are required to comply - and do fully comply - with all radiated emissions rules of all countries in which we have regulatory approvals. This includes all countries that follow US FCC and ETSI.
The applicable SAR regulation is that there must be 20cm of distance between any AP or radiating element (if using external antennas) and any human body.
We do not provide actual power density measurements. In general, we are well below the published regulatory limits.