Jacques / Mexico … we could swim exactly back to the surface at a few meters from the boat with the help of the EYESEA and the drift. Michel [photograph] / France When using my camera equipment with lights there has been no interferences with the EYE SEA.Distance and direction stay accurate whatever were the conditions, even though we were 2 photographs. It is a great product for photograph since it relieves our mind and yields a good warranty for us to get back to the boat in the best condition … we can therefore concentrate on our job with a free mind.Moreover, born as a wrist watch it is the best fit when I realize how many equipement I must carry around me. Great job. Michael / New Jersey / USA We have used the wreck diver unit twice; typical North East wreck and at the training Quarry. The wreck had a very large relief, thus the sighal was lost during the dive when we went and around the wreck. as expected. Otherwise it worked well.In the training quarry with no obstruction the unit peformed very well. It sometime takes the azimuth of direction back to the transducer to settle up, but once it settles up you find an acurrate couse back to the transducer.