This the Devantech SRF05 US (Utrasonic) distance sensor, for distances up to 4 meters.
This sensor is the successor of the SRF04, and has a mode for full compatibility with its predecessor.
Features:
- Range - 1cm to 4m.
- Power - 5v, 4mA Typ.
- Frequency - 40KHz.
- Size - 43mm x 20mm x 17mm height.
manufacturer: Devantech / robot-electronics