Sunny Beam Bluetooth radio wave 'Danger'

[saint]

Got asked a question i didn't know the answer to today.
Client is a bit concerned about the radio waves between the SB 4000TL and Bluetooth display i quoted. I was asked if it was constantly linked. I assumed it was even thought they do go to sleep.
Anyone know any different?

 

[SolarCity]

They only 'link' every few minutes. And not at all while the inverter is hibernating. The frequency of these links can be altered in the preferences on the Sunny Beam.

 

[MCS Renewables]

Any customers with ME or CFS or MS seem concerned about bluetooth devices so maybe this is something that affects their health or they have been advised to avoid.