They are fragile in nature since they depend on a precisely calibrated stylus that often extends a distance from the body of the device itself. They can be complex to set up and to operate, and they report a number of roughness parameters that are of limited interest to the coatings industry. Finally, these instruments have a significant initial cost. All these factors dissuade potential users.
How does the PosiTector RTR-P get peak density information from Replica Tape?