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VEX Robotics Ultrasonic Range Finder Kit No reviews yet Rating: none Availability: In Stock Price: $29.99 VEX VEX Item #: 276-2155 - For use with the Vex Programming kit. An ultrasonic range finder sensor enables a robot to detect obstacles in its path by utilizing the propagation of high-frequency sound waves. The sensor emits a 40kHz sound wave, which bounces off a... [more info...]

VEX Robotics Ultrasonic Range Finder Kit No reviews yet Rating: none Availability: In Stock Price: $22.49 VEX VEX Item #: VEX-276-2155 - For use with the Vex Programming kit. An ultrasonic range finder sensor enables a robot to detect obstacles in its path by utilizing the propagation of high-frequency sound waves. The sensor emits a 40kHz sound wave, which bounces off a... [more info...]