As Ian said, with an attachment, which I've never seen, even working in the shops where the meters were sold. It's called the Profi-Flash and plugs into the front of the meter. Page 39 of these instructions: http://www.gossen-photo.de/pdf/ba_profisix_e.pdf I don't know if the flash attachment had another name in the North American market. The instructions above have a photo.
Originally Posted by Chazzy