Bought this to notify me when my dog is ready to come back in. She’s really sweet and has a sweet little soft bark and whine, sometimes its hard to hear her...we always set a timer so shes not out in the cold for more than a few minutes, but we live inFrigid temperatures so I wanted something extra as a Courtesy for her.I wrapped mine in a ziploc bag and stretched it thin, secured it with a rubber band knot over the product to keep out any flyaway snow that sneaks under the eaves. It senses motion just as well through the clear plastic.I wanted a small motion detect area, mainly just over the door when she approaches it. Takes some trial and error on positioning it but we’ve almost got it perfect. I like the added bonus of security it provides too. ( I might get another one down the line, we get skunks in the backyard...im wondering if it would detect them? Keep her from setting one off, i’ll know to get her inside if an animal is detected)Setup was super easy.Personal opinion I don’t like how the chime repeats itself obnoxiously the entire time motion is detected, its non stop if something is standing in range...it should just go every 5 seconds or something. There should be a frequency setting...homes may want less frequency than shops for example. Found the chimes list so I could find the least obnoxious tone to hear over and over. I’ve included it for others to see, would of been helpful posted right on this page when I was shopping.Hope this helps, i’ll try to remember to update in a few months :)