I almost bought the Acoustimeter AM-10 today. It's a very expensive meter and I would be very disappointed if it can't measure 5G either. Looking at the frequency spectrum in can measure and the 5G frequency possibilities here in Australia it does look like it won't be able to measure it at all. I'm going to send an message to EMFields and ask them if and when they plan to measure 5G.
Customer support service by UserEcho