Are you interested in GPS Speed sensor and Resistance Ohm Signal Convertor?
 

GPS Speed sensor : Gets speed signal from GPS satellite, and output pulse signal to speedometer directly, It is the same accurate as speed sensor (around 0.1~0.2% deviation)

Compatible with different gauges with programmable speed ratio and lowest 0.5km/h speed to start
 

Resistance Ohm Signal Convertor : Acts as Interface Between Ohm Senders & Gauges, accurately Corrects Ohm Mismatch & Erratic Movement from Fuel Slosh

Compatible with any ohm sensor and ohm gauge