Terry Field Posted June 17, 2023 Share Posted June 17, 2023 Having recently been done for speeding ( first time ever!) I am getting nervous about the accuracy of my speedo. Unless someone has a simple way of calculating the real speed of the car, can anyone recommend a screen mounted gps unit? Preferably rechargeable.Demon Tweeks do one for about £89 which is wee bit pricey, but if it works well it may save the next fine. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted June 17, 2023 Member Share Posted June 17, 2023 You can check the accuracy of the Seven's speedometer at any speed of interest with an app on a smart 'phone. (Much easier than the old way of using roadside distance posts.) Probably best done with an accomplice in the passenger seat.Once you've done that you can adjust the speedometer to read what you want. Some people seem to like spot-on, other +10%. The method of adjusting varies with the type of speedometer. If all else fails you can add marks to the gauge using Letraset.If I were to use a dedicated device it would be a smart 'phone.Jonathan Link to comment Share on other sites More sharing options...
Terry Field Posted June 17, 2023 Author Share Posted June 17, 2023 Thanks Jonathan I hadn't thought about the app route. There are plenty online so I will trawl through them, unless anyone has a specific recommendation. Link to comment Share on other sites More sharing options...
StevehS3 Posted June 18, 2023 Share Posted June 18, 2023 Plenty available for free. I use this one occasionally to check my Speedo. https://apps.apple.com/gb/app/speedometer-55-start-gps-box/id557871911 Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted June 18, 2023 Leadership Team Share Posted June 18, 2023 I use this one on my iPhone, it's about as basic as you can get. Also flips to landscape format.https://apps.apple.com/gb/app/speedometer/id518469483 Link to comment Share on other sites More sharing options...
graearea Posted June 18, 2023 Share Posted June 18, 2023 just use Waze all the time. it'll warn you about speed cameras that you're approaching and the odd mobile speed camera that people have crowdsourced. it can be set to warn you if you're speeding and it'll show what the speed limit is, not what you think it is. Link to comment Share on other sites More sharing options...
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