Hi Manager,
 
GPS speedometer for trucks:
 
1.Switch unit between Km/h,Mi/h and Knots
2.GPS blind area odometer compasation
3.High definition and contrast ratio LCD screen
 
etc...
 
It sales good for Marine/Trucks/Performance etc..
May i know will you interesting in and discuss with us? 
 
Regards
Jo 
 
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Tenet Auto Electronics Ltd.
Tel:+86-755-82591445
Skype/Email: jo.wong@tenet.com.hk
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