Designed for flexibility

In Bear Sentry’s modular system, Expansion Packs are key. If you’re outfitting a group or camping with friends,

With one Bear Sentry plus expansion packs of poles and polywire you can have multiple campsites and / or a larger site.

You can convert a Backcountry fence into a Base Camp (or vice versa) because the models share the same powerful energizer and many common components. With Expansion Packs you get “Two Bear Sentries in One”.

With expansion packs you can turn one model Bear Sentry electric fence into the other.

Finally, for extremely dry conditions, you can use Expansion Packs to convert the normal “all positive” wire set up of your Bear Sentry into a positive-negative (ground-return) system. You can camp anywhere.