I'm not sure you can put the sensor directly on teh turbine it's self. I'm thinking you are going to have to install magnets into the main gear to get your head speed. These turbines idle at about 30,000 rpm and some of them can go well above 100,000rpm which I think is way too fast for the sensor to pick up. However, there should be a controller with the turbine that will tell you the rpm of it. I think lol. ,