A Tool to Help You Improve Your Game. Is your 6-iron really your 150-yard club? How far do you consistently hit your drives, really? Is it a pitching wedge shot? Or more like a 9-iron? Its easy to know for sure with Approach CT10 golf club trackers that automatically track every shot on any club even your putts. Easy to Install, Easy to Use. The lightweight and secure sensors easily attach to the end of a clubs grip. You wont even know the sensors are there while you play. But after a couple of rounds, youll be glad they are. An ingenious automatic on/off feature helps provide battery life of up to 4 years. When its time to replace batteries, you can easily do it yourself. Pair with Your Garmin Golf Watch. Pair with compatible Garmin golf watches for automatic game tracking so you can focus on your game knowing the sensor is tracking every stat. Those stats for each club with a sensor installed show up on your Garmin golf watch after pulling the club from the bag. See how far you typically hit that club, and view stats for accuracy to the fairway or green