Features: Knowledge precise distance measurement with the HC SR04 test board, highlighting advanced inaudible technology for accurate conclusions in complex conditions, ideal for smart androids and uavs. The HC SR04 test board includes chain output plan for fast and efficient data transfer, reducing time expenses in data collection and processing, excellent for programmers and lab research. Constructed with permanent ABS substance, the HC SR04 test board proposals excellent wear resistance and effect strength, ensuring extended use in frequent action undertakings. Developed for wide agreement, the HC SR04 test board backs multiple development platforms lacking additional couplers, simplifying installation and saving debugging time. Conference room and thin plan of the HC SR04 test board creates it simple carry and install in devices with limited space, suitable for small androids and transportable measuring equipment. Specifications: 1:Workingvoltage:DC5V 2:dormant current:less than 2mA 3:Leveloutput:High5V 4:Leveloutput:BottomOV 5:Sensing corner:notmore than 15 degrees 6:Detection:2cm-450cm 7:High accuracy:up to0.3cm Package Includes: HC SR04 Test Board ×2 note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!