Electronic speed control with mobile devices Serial number device: AK0621H-CMP3753520 Calibration certificate: Device serial number CMP3753520:LAT249_20220427_03 of 28-04-2022 History Device serial number CMP3753520:LAT249_20210506_07 of 12-05-2021 Approval system: Executive Decree n° 288 of 17-01-2018Executive Decree n° 4668 of 28-07-2016