I am not an electrician, but I have long since lost count of how many "small" electrical projects I have taken on over the years. I always try to use a voltage tester before digging into any existing wiring, although I have a few wire cutters with that familiar little notch in the blade where I cut a live wire. My existing Klein tester finally died after 10 years or so, and I didn't like the look of the new ones, so I gave this model a shot. I always associated Fluke with nearly indestructible test equipment.