Portable Electric Bear Fences For Any Adventure

How It Works

Bear Sentries are electrical systems designed to deter predators from entering campsites. We explain how the technology works below, organized by topic.

However, we must emphasize the importance of preventing bears from wanting to visit in the first place. Be sure to follow all best practices for camping in bear country.

The Bear Sentry wildlife deterrence system.
The 1.0 Joule output Bear Sentry energizer for campsite bear fences.




What to check for optimal performance.






How to maintain voltage in the system.





The Bear Sentry fence deters bears with a painful shock that does no damage and is safe for people to use.





 Good for the bears.






The need for tension in the lines.





The Bear Sentry electric fence battery pack.


How long the battery pack lasts.