Keson RRT12 3-Feet Top Reading Center Line Measuring Wheel
This innovative wheel feature a gear shaft driven counter placed above the wheel. This results in a better balanced wheel. The counter reset on the handle and on the unit housing means no more bending over, lifting the wheel, or stepping on it to reset it to zero. The brake on the pistol grip stops counting instantly. A collapsing hings snaps the wheel into the extended position with the flick of the wrist and it disconnects, rather than breaks, if you forget to press the unlock trigger.