Most of these ultra sonic motion detectors, at least those sold in the US, are connected directly to mains, and operate flood lighting at mains voltage. I have several on my property to operate various alert systems. I took one apart to see if I can tap into the low-voltage section and connect to a safer level. Although it seemed doable, I decided instead to intall an isolator to bring out the detector signal. Maybe the one in the picture is something different. I like working with the ones sold at the local home improvement store because they are cheap, available and rugged.