invisible fencing/stud

wondering what brands and sources people recommend for underground fencing. or which ones to stay away from. lab keeps taking off - like as soon as he knows no ones looking.have to do something about it. have a very large area to cover around farm. brand invivible fence it quite pricey - any comparable options?thanks also would like to stud him out -- live in hayward area

Thanks for input!

If you have heard of it not working for some people its most often because they never train the dog to know the boundries. instead the dog gets a random 10/10 shock and is petrified because it has no idea what it did wrong. Get the idea in the dogs head so it knows it did something wrong.

Menards innotek works good only complaint I have is the wire is little thin. Maybe all are the same but would think they would be little stronger. I guess they probably make them small so it's easier to bury? Make sure you spend little extra and get one that you can charge.

I use the cheap one from menards innotek i think.. Proper training for it is way better spending money on the best bells and whistles. 100$ later 5 20 min sessions and you will be 95% worry free forever.