M4/M5 Smart HADECS3X Speed View the calibration certificates for the M4/M5 smart HADECS3X speed cameras. M4 3840B HAD00238 – 2021/22 (PDF) HAD00799 – 2022/23 (PDF) M4 3845A HAD01332 – 2022/23 (PDF) HAD01101 – 2022/23 (PDF) M5 8330B HAD00803 – 2021/22 (PDF) HAD00138 – 2022/23 (PDF) M5 8347A HAD01612 – 2021/22 (PDF) HAD02199 – 2022/23 (PDF) Page feedback Was this page useful? * Yes No What would improve this page? What best describes the reason for your visit today? Report a crime or incident Get advice Information about a service Contact details Request an update Read a policy or strategy OtherOther If you are human, leave this field blank. Send feedback