protection at anchor

[WolfgangSeaLife]

Having read all posts about sensors, I am still looking for a dependable IR sensor that warns me of anybody approaching the boat.
Possibly something that can turn on strong lights around the boat.

Thank you
Wolfgang

[exMaggieDrum]

Seems like the technical difficulties of that are huge. It would be far easier to put a sensor in a particular place - cockpit, boarding ladder, etc. And what to do about birds, weather. Climate protection. But I think what you are thinking about is a "proximity detector". Don't know if there is a particular device that will do what you want. I do understand why you want it. Good luck with finding something that works. I am sure it will require some adjustments to get it right (location, sensitivity, etc).

[Dennis.G]

Maybe possible to detect someone approaching your companionway or on your deck, but if you mean anybody approaching your boat I think you may be asking for too much from the available technology.

[cards26]

Marine Magellan

[l2ridehd]

About the only thing that will work is a well trained dog.

[Lizzy Belle]

Originally Posted by WolfgangSeaLife

that warns me of anybody approaching the boat.

I haven't done the exact math, but just looking at the sheer number of cruisers / boaters out there, and the number of reports, chances are good nothing will happen unless you're going to visit some "known problem" areas.

So you'd basically get an alarm every time a dinghy or other boat comes close, or even when a bigger bird flies by to have a look at your boat.

Personally, I'm a big fan of a security hatch: it keeps people out of your boat while letting air in, it doesn't give any false alarms and other cruisers are left in peace

A friend of mine, who was cruising a couple of years ago, told me used his top railing wire as an electric fence - and the only ones that used to grab it were either himself after a couple of drinks, or unsuspecting cruisers who dinghied by ....