The
Basic Comfort Contact System from Perimeter Technologies is one of the leading
underground fences on the market. With a number of great features including temp check, wire check, battery check, waterproof polycarbonate plastic housed collar receivers, replaceable lithium ion batteries, Comfort Contact soft rubber contacts, digital frequency encoding, a progressive correction method, and an automatic safety shut-off, you can be assured that your pet will remain safe and secure within its boundary.