I have only managed to find one RS PIR in. It doesn't seem that the Homebrew Cams have even remotely caught on in Northern VA where I live but I can't find them at all. I need a replacement PIR that is just as simple to modify and I need PICS can't do it on just words, I'm Electronic dumb. I can't usr the regent MS20 because I've been to 3 walmarts and 2 lowes and 2 home depots and zip. Please help !!