An ultrasonic ranging module with both I2C and Serial interfaces. New AutoTune algorithms enable a 0 cm minimum range (in the background) with no calibration cycles necessary. Additional new commands allow for separate burst and ranging control.

Manufactured By - Devantech Ltd (Robot Electronics)

        Special SRF02 commands
        include the ability to send an ultrasonic burst without a reception
        cycle, plus the ability to perform a reception cycle without the
        preceding burst. For more information on this sensor please view the
        Technical Documentation.
Specifications
Voltage     5.0V
Current     4 mA Typ
Frequency     40 kHz
Minimum Range     16 cm
Maximum Range     6 m
Units     Range reported in µS, mm or inches
Interface     I2C / Serial
Size     24 x 20 x 17 mm
dimensions