If you plan on using motion sensors on general work lighting in your shop,don't.
We put T-5 high bays with motion sensors in one of our warehouses at work-they're a pain in the azz.There is almost always a long delay in the time it takes for the sensor to pick up your movement and turn on the lights-sometimes as long as 5 seconds.Walking down the aisles is a series of stops,waving arms,a short walk and another stop.This isn't too bad in a seldom used area,but to do this in a work area is very hazardous.
In my opinion,motion sensors to operate lighting is fine as it is most commonly used-as security lighting-but it ***** in any application in general lighting.