Waterproof ultrasonic distance sensor. This sensor can be used for collision detection in your project.
100 pack of black UV resistant nylon with flexible tape section, pull tight and does not come undone. Length 6 inches.
This is a 4WD IG42 single bearing platform that is setup for outdoor navigation/positioning. A full array of sensor options including an IMU, motor encoders, and a Garmin 18x GPS that can provide position feedback with up to 3 meter accuracy.