HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Product Description: Can Be Used For 3-5V Dc Power Supply Modules. It Has Red Power Indicator. Ir Infrared Obstacle Avoidance Sensor Module Can Be Widely Used In Robot Obstacle Avoidance Obstacle Avoidance Car Line Count And Black And White Line Tracking And So On The Output Port Out Sensor Module Can Be Directly Connected To The Microcontroller Io Port You Can Directly Drive A 5V Relay It Has A Pair Of Infrared Transmitting And Receiving Tube Tube Infrared Emit A Certain Frequency When Detecting Direction Meet With Obstacles (Reflecting Surface) Reflected Infrared Receiving Tube After The Comparator Circuit Processing Green Indicator Will Light Up At The Same Time Signal Output Interface To Output Digital Signal (A Low Level Signal).Div>Specification Weight And Size Product Weight: 0.0020 KgBr> Package Weight: 0.0100 KgBr> Product Size(L X W X H): 4.50 X 1.50 X 0.70 Cm / 1.77 X 0.59 X 0.28 InchesBr> Package Size(L X W X H): 10.00 X 8.00 X 1.00 Cm / 3.94 X 3.15 X 0.39 InchesP>You Will Receive You Will Receive: 5 X Ir Infrared Sensor Module/P>