TwinTurbo Status:  In Production (2022 to Present)   DerbyStick and DerbyPaks Status:  In Production (2011 to Present)   First sold in 2011, this is our small and lowest cost 1-4 Lane Timer. TURBO Status:  Parts and Repair Only.  New systems sold 2005-2021.  Parts are available to replace missing or damaged parts, or to expand existing systems. TURBO Lite Status:  Parts and Repair Only. New systems sold 2010-2021.  Parts are available to replace missing or damaged items or to expand existing systems. DTX000 Status:  Parts and Repair Only.  New systems were sold 1998-2010.  Stop Sensors and Start Switch are available. Other FUN Items