6 Gauge Set 85mm GPS Speedometer&Tacho&52mm Fuel/Temp/Oil/Volt/Trim with Sender 6 Gauge Set 85mm GPS Speedometer&Tacho&52mm Fuel/Temp/Oil/Volt/Trim with Sender Features:Suitable for all cars,tractors,vans,vessels,boats,yachts,etc. The signal comes directly from the satellite signal receiver (GPS Speed Sensor) The gauge has the advantages of high precision, quick location confirmation and short start up time....