... 0.02 ~ 4.00m meters range. This ultrasonic sensor provides non-contact distance measuring of 0.02 ~ 4.00m meters range,which ... is applied for distance measuring like: programmable car obstacle avoidance, robot obstacle avoidance, ... 1\ Low voltage,low power consumption;2\ High accuracy,wide measurement range;3\ Waterproof design,compact sizeeasy to use;4\ Application ...