Dear Manager,
Do you have a problem for mechanical speed sensor while speedometer still works well?
We would like to recommend you GPS speed sensor for your original speedometer.
How does it work?
It gets signal from GPS antenna directly,no relationship with Engine.
All you need to do is just connect power cable.
1.High Accuracy only 0.3% deviation (mechanical speed sensor will be 3~5% deviation) 
2.Pulse/Odometer Compensation when in Tunnel or under Bridge 
3.Mini Size: 4.5cm(L)x1.9cm(W), 100cm extended cable 
4.High quality GPS Active Antenna which performs well in windy or heavy rainy weather.
May i know are you interested in ?
Contact me today and let us talk for more to help you.
Thanks & best regards

Tenet Auto Electronics Ltd.
Whatsapp/Mobile:+86 185 0301 7253