Mnemo survey device, less than one year old. Freshwater use only. Finished the project I wanted it for. As new condition. 400USD. It will be in Tulum June 18 this year for 10 days, or can be mailed from Florida on June 7.
https://imgur.com/a/Vy3Ss
http://arianesline.azurewebsites.net/Home/Mnemo
