The one I bought, Version 4.3 Auto Zero, comes with a clamp instead of the stick on hooks shown in the Dave Moss review. It also has a remote control/readout that attaches to the handlebar with a velcro loop.
Setting suspension sag has always been a pita, especially if working alone. Not having the "Street bike kit" which is just the little stick on loops isn't a problem. I'd much rather have the remote that comes with the dirt bike kit. If you're only ever going to set the sag one time get some help and save your money. If you're planning to do this multiple times it is well worth the cost. This tool makes the job quick, simple, easy and doable by one person.
CAUTION. The magnet is very strong and if it gets anywhere close to your gas tank it will chip the paint when it pulls your hand and smacks the tank.