Specification Binding : Electronics Brand : TR Computers Label : TR Computers Manufacturer : TR Computers Model : PIR-2-Pi PackageDimensions_Weight : 0.2204622620 PackageDimensions : L:9.05511810100 X W:6.29921259200 X H:0.78740157400 PartNumber : 4331031487 ProductGroup : PC Accessory ProductTypeName : COMPUTER_COMPONENT Publisher : TR Computers SmallImage_Height : 56 SmallImage_URL : http://ecx.images-amazon.com/images/I/511r5JtwU3L._SL75_.jpg SmallImage_Width : 75 Studio : TR Computers Title : PIR-2-Pi IR Motion Detector - PIR Infra Red Movement Sensor & GPIO clip for Raspberry Pi 3, Pi 2, B+, A+, B and A models. Connects directly to GPIO pins. PIR module sends signals on GPIO4. Weight : 0.2 WeightUnit : pounds