Portable Electric Bear Fences For Any Adventure

Frequently Asked Questions

  • How does an electric bear fence work?

    by Cynthia Gentles
    A Bear Sentry is an example of a simple electrical circuit. The polywire is connected to the positive ( + ) terminal of the energizer; all the lin...

  • How useful are guylines?

    by Cynthia Gentles
    When we designed our electric fences we knew they had to be functional and easy to use. We developed our own guyline kits with this in mind. Bear ...

  • Can I use my Bear Sentry around a chicken coup?

    by Cynthia Gentles
    Yes, when taking a break from the backcountry you can put your portable electric fence on duty at home. It’s useful around garbage bins or compost,...

  • Is there a gate I can use with my Bear Sentry?

    by Kate Gentles
    You can make a gate or ‘door’ in the Base Camp model. You’ll need to use 2 posts for the door and string the polywire in a zig zag pattern. An Exp...

  • How do I know if the fence is working properly?

    by Cynthia Gentles
    It’s about proper set up and maintenance. 1. Optimal voltage. This is the electrical “pressure” in the fence that enables a connection with a bear....

  • What size campsite can a Bear Sentry secure?

    by Cynthia Gentles
    The Base Camp model (for camping with a vehicle) comes with 6 step-in posts and 100 meters (328 feet) of 3 mm (1/8”) polywire. We recommend no mo...

  • How much tension should there be in the lines?

    by Cynthia Gentles
    The more tension, the better. If a bear tries to enter your camp site, the Bear Sentry energizer is highly capable of delivering the shock to dete...

  • Why is it important to have high voltage and energy output?

    by Cynthia Gentles
    Let’s start with the Basics When an animal touches the hot wire of an electrified fence, it closes what was until then an open circuit. Electrical...

  • Can I covert my Syclone into a Base Camp?

    by Cynthia Gentles
    Simply buy Expansion Packs for the Base Camp model. This is possible because Bear Sentries are modular: Backcountry and Base Camp models share the...

  • Does deterrence harm the bear?

    by Cynthia Gentles
    While the shock is extremely painful, it lasts but for a split second in the form of a pulse (see  “What’s that clicking sound?”). So the bear won’...

  • How do you attach the ring terminal to the Base Camp polywire?

    by Cynthia Gentles
    First, use a lighter to fuse the plastic insulation at the end of the polywire (apply heat for only a second or you risk melting away the plastic u...

  • Can I use a Bear Sentry to protect beehives?

    by Cynthia Gentles
    For sure. Bears do love beehives for their honey and pupae. A Bear Sentry can protect them from predation and damage, with a few considerations.  ...