
This device actually worked better than I expected at the price. I got one for my deck, which is about 20 x 10', due to carpenter bees in the day, and spiders and cockroaches at night.
It has been pretty effective with the carpenter bees. At first I thought they were completely gone but I have seen ONE since plugging in the Pest-A-Repel. Considering that before, I couldn't even sit peacefully in a chair without the bees buzzing around my head, this is definitely an improvement.
There is also an improvement in the spider webs, which normally when I open the back door at night I would get one in the face if I didn't wave my hands around like a lunatic. So far no spider webs, at least not near the door or area where I sit.
So far it hasn't affected the roaches that come out at night but I'm taking a wait and see attitude. The instructions say it can take a few weeks to start working fully, and it's only been about 2 weeks.
Even if it doesn't affect the roaches I feel this was a good value.Get more detail about DX610 Pest-A-Repel. Electronic Ultrasonic Pest Repeller.