This is a Built-In USB Interface for the TURBO product line only. Order it as an option to be added to your TURBO. It comes with a 10 ft USB cable that you will be able to hook up directly between your computer's USB port and the TURBO. If your order this, you will then have BOTH the USB and serial port connections on the Timer Module.
These sensors are for the Turbo Lite system only. Purchase these if you would like to have some extra sensors as spares. The cable length is 10 feet. This length can be altered if needed, but you must purchase the additional $3.00 charge per each cable you need altered. These charges are listed under Optional Items. These stop sensors are not used with the TURBO timer. You must provide a light over these sensors.
You may request to change the length of the cables for either the start switch cable and for each lane's finish sensor cable. The standard lengths are: 40 feet for the start switch and 10 feet for each lane's stop sensor. You need to order one $4.00 charge for each cable you wish to have modified. After entering the quantity needed changing, you must enter the exact length you need for each cable in the comments section of this item--to the right on this page.