Dear Manager,
Are you interested in GPS speedometer?
1. GPS blind area odometer compensation
2. Overspeed buzzer alarm (Value adjustable)
3. Total mileage adjustable
4. No mechanic sensor, get speed signal from GPS
It is widely used in classical car,motorcycle, marine boats, truck, bus, etc.

Would you like to try some samples?
Please feel free to contact if you need more information.

Best regards,
Tenet Auto Electronics Ltd. 
Whatsapp: +8617322329061