Q：How far does the deer repellent device detect animals? A：The PIR motion sensor detects animal heat up to 26 feet within a 110° coverage angle. Q：Is it safe for pets and humans? A：Yes, it uses ultrasonic waves and bright strobe lights that are safe and inaudible to humans. Q：How long to see results? A：Consistent use for about 2 weeks is recommended for animals to learn to avoid the area. Q：What animals does it repel? A：Deer, raccoons, rabbits, cats, skunks, and coyotes. Effectiveness may vary depending on species and environment.