DO SNAKE REPELLENTS WORK? I'm frequently asked if snake repellent devices work to deter snakes. These devices function by creating a sound and emitting a vibration into the ground. If they work, snakes should move away from them. In theory, they need to be 10 - 25 metres apart (Max) in order to be effective to deter snakes. Check out this video to see if they really work. I issue a challenge to manufacturers of "snake repellent devices". Show me any device, you install it how you want. I'll brin