Ten day sail from Pensacola, Fl to Mexico Beach/Port St Joe and back. Experienced many rough storms and anchor drug twice, Anchor Alarm alerted us with a plenty loud signal, not too loud. Easy to use, 35 ft Oday with about a 60 ft anchor line. (10 ft depth below keal) Set Alarm distance at 80 ft, GPS accuracy at 30 ft, draw trace - on (this draws where the boat moves as wind changes or anchor drags), Show Accuracy circle-on, anchor alarm as “doorbell”, Sounds to low volume warning -on…. SLEPT PEACEFULLY, though I am old and as I woke during the night a couple times and visually checked our position for added peace of mind and “all was well.”