GForce Diff Digitizer
GForce have announced the release of their Diff Digitizer differential hardness checker. The device features a 5-digit display to monitor diff hardness and it its equipped with a 7mm outdrive, ideal for most 1/10th scale vehicles. The tool can be used to check the hardness of gear differentials but it is also helpful to break in or pre-heat diffs prior to hitting the track. Included in the set comes a Micro USB wire for easy charging using any USB charger or output.
Source: GForce [gforce-hobby.jp]