Usage Tips:[ Quality]Brand and high quality Mini Pyroelectric PIR Human Sensor Module,widely applied for all kinds of automatic induction electrical equipment. [High sensitivity] The AM312 human sensor module is a digital intelligent automatic control product is based on passive body infrared technology, which is highly sensitive and to . [Good function]Small in size, and feature low consumption and nicely anti-interference, with internal digital signal processing and direct high and low level output. [Repeat trigger]After high sensing output, during the delay time, human body is within sensing range; output will keep high until the delay after the people leaves, then it will become low. [Standard sizes]Working voltage: DC 2.7-12V;Sensing range: less than or to 100 degree cone angle, 3-5 ; (depending on the lens) Colour: green + white Material: PC + metal Package Contents: 5 * PIR sensor module Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.