Product Description: This kit sends out ultrasonic waves from the ultrasonic module, and the distance of the objects in front is derived by calculating the length of the received . The pod can be positioned at any angle within 0-180The pod is equipped with an ultrasonic module to detect the distance of objects within 180 of the surrounding area. The results of the measurement are output through the display and presented graphically, making it a fun little for project. Power input: USB power supply, 7-12V DC005 power supply holder input Product Name:Ultrasonic Radar Kit Dimension:165MMx95Mx85MM Product weight:88G Color:As Shown Material:Plastic+Metal Package Contents: 1 * electronic DIY kit Only the above package content, other products are not included. Note: Light reflection 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.