Bears GONE!

Within 2 hours of UPS delivering 2 of the 4 units we purchased we had a black bear yearling who forced its way though the bottom the screen door onto the enclosed porch. I opened one of the units from its package opened the slider onto the porch initiated your alarm and the bear was clearly frightened and left without hesitation. We purchased the units for trip wires around the top of the dog enclosure I am certainly more confident about this application. 
-D.M.