This is an SDU-5 Emergency Distress Beacon. These can be found on ebay for a few bucks though the screen accurate ones are hard to find. The used in the movie is branded as a Neo Flasher. The stickers can be purchased here… https://www.etsy.com/listing/989954504/jaws-screen-accurate-neo-flasher-sticker?click_key=ad3fcdb564a4ea931dcb70af40a5fc5590b875b1%3A989954504&click_sum=e2615371&ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=neo+flasher&ref=sr_gallery-1-1&organic_search_click=1&edd=1 Reply
This is an SDU-5 Emergency Distress Beacon.
These can be found on ebay for a few bucks though the screen accurate ones are hard to find.
The used in the movie is branded as a Neo Flasher. The stickers can be purchased here…
https://www.etsy.com/listing/989954504/jaws-screen-accurate-neo-flasher-sticker?click_key=ad3fcdb564a4ea931dcb70af40a5fc5590b875b1%3A989954504&click_sum=e2615371&ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=neo+flasher&ref=sr_gallery-1-1&organic_search_click=1&edd=1