I have installed the 500ft sensor and Love it. I live in the country and needed someway to know when someone was driving up my driveway. This is perfect and gives me a sense of protection and let’s me know when someone is about to knock on my door. So grateful for the excellent service from Guardline Team!!!!!!!!

Mixed results placing them outside around our house, but work well to notify us of motion in the front of our house.

It's really nice not being surprised when someone (driving or walking) shows up to see us. This way we can meet them before they get to the door, or hunker down and ignore them!

Very satisfied

Bought two more sensors to add the ones I already have great product