Attract Fleas from Up to 30 Feet Away When plugged in, the TERRO Flea Trap utilizes light and heat to draw fleas out of their hiding spaces. These attractants can entice fleas from up to 30 feet away when no other attractants are nearby. The trap's 360º access allows fleas to enter from all directions. Use one trap for every room where fleas are present. If you’re a pet owner, you can use the TERRO Flea Trap year-round as an early detection device, luring these parasites out of upholstery, carpeting, and cracks. How it Works Why are fleas so eager to investigate the TERRO Flea Trap? Adult fleas sense heat, which to them indicates a warm-blooded animal host. By simulating the warmth of the host, the flea trap attracts fleas from where they hide. When the fleas and other insects jump toward the heat in an attempt to feast on their “host,” they find themselves stuck to the SuperGrabber glue board, unable to escape.
