The Cricket^tm Series Sensors , offers a low cost ultrasonic sensor system in a compact ABS package. The unit incorporates our 7000 series ultra-sensitive electrostatic transducer and the supporting circuitry to provide either an analog output (Cricket^tmA) or two NPN digital outputs(Cricket^tmS). Each Cricket^tm  version provides reliable detection over the range of 6 inches to 20 feet, or 1 inch to 12 inches (special order).