Yes, there is a touch plate/button that you place your thumb on when you’re in the set position. When you start, you release the button and the stopwatch, which you attach to a belt you wear around your waist, will automatically start. You need at least one sensor/wand in order to time yourself. You can buy the system as a kit. Comes with two sensors and the watch. You have to purchase the touch plate and belt separately. If you talk with JP DaSilva he will more than likely be willing work out a deal for you…514-827-4597. He distributes out of Canada. JP has taken over the U.S. distribution operation as well since Shawn O. stopped his U.S. distribution operation.
I use the system for training my sprinters and hurdlers. It works very well.