The SRF05 is a new design of ultrasonic range finder and features an extended detection range. Two operational modes are available, single pin for trig/echo or 2-pin for compatibility with the SRF04. The input trigger is a 10µS min. TTL level pulse and the echo pulse is a positive TTL level signal, with the width proportional to the object range. * Based around a PIC processor * Only requires a single 5V DC power supply * Typical current consumption of 30mA * Maximum range is a long 4m * New design minimises pin usage host controller * Ideal for low cost robotic applications