SRF04 - Ultrasonic Range Finder
Voltage - 5v only required
Current - 30mA Typ. 50mA Max.
Frequency - 40KHz
Max Range - 3 m
Min Range - 3 cm
Sensitivity - Detect 3cm diameter broom handle at > 2 m
Input Trigger - 10uS Min. TTL level pulse
Echo Pulse - Positive TTL level signal, width proportional to range.
Small Size - 43mm x 20mm x 17mm height

Technical Specification  and FAQ

Examples for many popular controllers can be found here


Ultrasonic Ranger SRF04 
Range 3cm - 3m
Description
The SRF04 was designed to be just as easy to use as the Polaroid sonar, requiring a short trigger pulse and providing an echo pulse. Your controller only has to time the length of this pulse to find the range.

Enquiry

For Enquiry,
Please Email to sales@ai.com.sg or
 Contact us @ 65-6741 3812