Rating:  -
Used unit for roughly 3-months in my Parker 2120 sport cabin. Installation of the transom mount tranducer and speed sensor were not very difficult, but plan angles, location and wire-runs very carefully. Each has its own cable, with a connector that plugs into the back of the LMS-525C instrument. If you have to drill holes to run your cables, the pilot hole will be a rather large 7/8", so plan carefully as I said. I don't like putting holes in a wood core transom that large, so ran my lines neatly above the transom. Since I have an outboard engine, one really needs to look hard to see the cables. The installation guide is fair at best, but more than adequate; just read twice before proceeding! As for the LMS-525C, installation was fairly easy, but also requires a thoughful plan for viewing angle and running your connections, all of which plug into the lower rear of the unit. As far as performance is concerned, I am very satisfied. The transducer supplied works well in most sea conditions at all speeds that I can run in my boat. On occassion, in heavy seas, the transducer will loose contact with the sea floor with loss of depth transmission. However, once contact is re-established, depth transmission is immediately regained. The depth on the display screen will flash immediately, so you will know if this condition exists. However, this happens infrequently, thus I don't consider it a safety issue or a problem, just thought I'd mention. Prop wash has never impacted my unit. All features work as advertied, but paging through the numerous menu options will take getting used to. Overall, the instructions were reasonable. I do use the NMEA 0183 output, and found tech support helpful in linking to a distress locator feature in my Raymarine VHF radio. This year I am installing an autopilot and expect to tie-in NMEA connections as well. So far, I am very satisfied with my unit, but can't speak to its longevity yet. For the price, do your research in this regard. My inability to opine on this point is why I only gave 4-stars. Good luck!
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