If you already have a WatchDog and need a manual, use the TIRESIZE function to determine which manual to retrieve. In the TIRESIZE function enter all 0’s ( TS 000.00). If the display shows all 0’s (00000000) use Manual 5.0. Otherwise, the display will show 2 numbers on the left, a blank space, then 0’s. The numbers on the left indicate the manual you should use. For example, if you see “70 00000” use Manual 7.0. If you just want to see the latest WatchDog 2000 manual select Current Manual. You will need Adobe Reader to view and print these manuals