These are good electronics

Protect your expensive electronics from damaging power dips, and surges

It works great to protect electronics from off and on cycles of power

Protect your expensive electronics from damaging power dips, and surges

But since having these we highly recommend for all sensitive electronics, like computers, satellite receivers, and any others including computerized sewing / embroidery machines.

If you have sketchy or non-grounded power outlets you should get this to protect your computer or other valuable electronics.

I have 3 for all my sensitive electronics like computer and home cameras along with WIFI modem.