Operating voltage range: the of this for -SR501 PIR sensor is 4.5 - 20v, the quiescent current is Less than 50uA, the highest level output is 3.3v, and the lowest is 0v Trigger mode: the body infrared sensor module has 2 modes, L can not be repeated trigger and if you want repeated trigger, please choose H (default repeated trigger) Product detail: delay time: 0.5-200S (adjustable) can be produced in the range of a few tenths of seconds to tens of minutes; Blocking time: 2.5S (default) can be produced in the range of ten seconds to tens of seconds Safe and reliable: human body infrared motion module is an automatic control module that based on infrared technology, with high sensitivity, strong reliability and low voltage working mode, practical to use in Apply to: PIR sensor module can be applied in all kinds of automatic induction electrical equipment, especially automatic control products powered by dry batteries; It can help you turn on lights, automatic doors, electric fans and more by detected Material:ABS+Electronic components colour:black Package Contents: 15 * for -SR501 PIR Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.