Roads Policing Unit (RPU) - Surrey Police - UK on Twitter: "Once a month we have to conduct speedometer checks on all of our vehicles to ensure they're still spot on and
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Roads Policing Unit (RPU) - Surrey Police - UK on Twitter: "Once a month we have to conduct speedometer checks on all of our vehicles to ensure they're still spot on and
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Mechanical Speedo
RSS develops digital speedometer calibration method for police | General News
Police forces make use of 'unique' digital speedometer calibration service