Be sure to read the reviews on those tools, however. Sometimes they're inaccurate and/or hard to calibrate. I didn't look at the user reviews for those particular tools, but it's worth looking into before buying.
1998 BMW 328is Shooting Brake
1966 Pontiac GTO
2007 Subaru Impreza 2.5i 5-door
View my photos: Caught in the Wild