1. Q: How effective is it against larger animals like deer? A: It is effective against larger animals like deer. It has been effective in deterring deer from their yards and gardens. 2. Q: Does it repel stray cats? A: This repeller is effective against cats,it to deter stray cats from their yards.Your yard and garden is free of digging cats. 3. Q: How durable is it in harsh weather conditions? A: The animal repellent is waterproof and works well in different weather conditions. it works in all weather conditions.It has kept its charge for a week with no additional charging needed, even on cloudy and rainy weather. 4. Q: Is it easy to install? A: Animal deterrent is easy to install. An effective animal deterrent for all outdoor spaces - yard, chicken coop, farm, garden, livestock yard, orchards, porch and more. 5. Q: Does its ultrasonic range cover the intended outdoor area? A: The motion detector is sensitive enough to trigger the alarm when I walk up to 20 ft away either night or day.