CLEANRTH TSAR520 Advanced Ultrasonic Animal Repeller w/Triple Scan Technology Successes repelling Deer, Foxes, Racoons, Rabbits, Dogs, Cats, Rats, Bears, Ducks, Skunks, & More! Detection is Key! The TSAR520 has 2x more detection coverage than most Animal Repellers on the market Utilizes Triple Scan Animal Detection Technology that detects 52 feet away for a total of 2000 Sq Ft of detection range Ultrasonic sounds repel Pesky Animals in an open 5000 Square Foot area Water resistant device plugs-in w/38 foot cord or uses 2 9V batteries. Freestanding, easy mount design can also be staked or easily hung from wall/ceiling.