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The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent range accuracy and stable readings in an easy-to-use package. It operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft m..

This is a waterproof version of HC-SR04 ultrasonic Distance Sensor. It's usage and connections are exactly same as HC-SR04.Features    Operating Voltage: 5V DC     Static Operating Current: 5mA     Operating Current: 30mA     Aco..

This is the fantastically easy to use sensor from Maxbotix. We are extremely pleased with the size, quality, and ease of use of this little range finder. The serial interface is a bit odd (it's RS232 instead of standard TTL), but the PWM and Analog interfaces will allow any micro to listen easily en..