I have the Harbor Freight one. It is mechanical and works fine. It's the only one I have ever owned, so I don't really have anything to compare it to, but for my purposes, it works fine and was fairly cheap.
I think I'll go with harbor freight one. thanks for all the input guys.
BTW... those top rear shock bolts break off entirely too easy. I got lucky and a few taps with a screw driver and they twisted themselves out.
I have 3 torque wrenches. The lowest is in inch pounds, one from 10-80 lbs and a biggie for in excess of 100 lbs. They all overlap to some degree but I am told a torque wrench at either end of its scale is useless, as in inaccurate readings.