This is not for everybody but I bought the RacePro III tach unit by SENDEC and it arrived today for my DS 650R. This was just what I was looking for, a bit pricey all told at just under $300, but worth it to me...I like to know what the motor is doing for tuning and performance. It is a programable tach wioth several setting options, both digital and analog (bar graph) display and it has 2 temp guages. One is a cylinder head temp sensor that is a washer that sits under the spark plug, the other is a standard 10mmm bung that will sense water or oil temp depending on where you mount. The unit is small and well built, I am going to fabricate a simple aluminum mount so it will be centered near the speedo. Happy to answer any ?s.