How it works Snake Repellents vibrate to signal danger. The vibration is within snakes pitch range thus deterring the snake to surrounding area. Snake Myth Scientists have evidence that snakes can detect the direction of vibration! Vibrations as small as one billionth of a meter can be sensed by some snakes! Snakes hardly hear airborne sounds but are sensitive to vibration. Vibration can signal potential danger. Most snakes choose to avoid danger. Where to install The whole perimeter of your property House and garden. Childrens outdoor play area Nurseries Lawn Kennels / Sheds / livestock paddocks Installation Guide Place repellemt 18cm deep. Backfill with fine soil finely crumbled. Soak soil to set. Place repellent no more than 25m apart. In sandy or rocky soil, reduce to 10m apart. If properly installed, the vibration will be strong and airbourne sound will be weak. Poor soil contact (presence of air gaps) will cause weak vibration and noisy operation. Vibration does not jump to another level. In the event of upper and lower garden, add extra repellents. Vibration does not pass through structures. Add a repellent to cover the other side of the structure. Vibration does not pass through deep cracks. Vibration does not pass through hard objects like rocks and concrete. Avoid limiting your coverage. Do not install in shadows.