I use what is called a hot zone fence system but I built it myself. I use braided fence wire with step-in post. Two strands, 10” and 18” off the ground. I also add another fence 3’ away from the first (outside). Using ribbon electric wire and placing it 14” off the ground. I use a solar charger and connect it to the ribbon wire. This has worked for around 8 years. I have watched the deer on my wifi camera and they will eat along the outside of the fence but they never jump in. They can’t figure how to get in, it funny to watch 😳😂. I hope this helps someone.