Endorsed by the World Sport Stacking Association (WSSA) as the official timing device for Sport Stacking, the G4 Pro Timer is a detachable precision Competition Timer accurate to 0.001 with super sensitive touch pads.<br /> <br /> Features:<br /> - Accuracy to 0.001 seconds<br /> - Memory feature to save your best times<br /> - Data port to connect to external display<br /> <br /> Note: The Gen 4 Pro Timer is compatible with Gen 3 and Gen 4 Mats which are sold separately.<br /> <br />