Specification: Product Type: HC--SR501 Body Sensor Module Operating voltage range: DC 4.5-20V Quiescent Current: Level output: High 3.3 V /Low 0V Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger) Delay time: 5-200S(adjustable) the range is (0.xx second to tens of second) Block time: 2.5S(default)Can be made a range(0.xx to tens of seconds Board Dimensions: 32mm*24mm Angle Sensor: Operation Temp: -15-+70 degrees Size:3.2 x 2.5 x 2.5cm(L x W x H) Color:Green+white