The Shure SFG-2 Stylus Tracking Force Gauge is the industry standard. This simple-to-use measuring device was developed to give listeners a way to insure against the problems caused by improper tracking force settings, which include mistracking, excessive record and tip wear, and poor sound reproduction.
This gauge is a highly accurate beam balance instrument designed to measure the actual downward force exerted by a stylus on a record over the range of 0.5 to 3.0 grams. Each gauge is individually factory calibrated, and displays readings in 0.05 gram increments in order to provide a precise measurement of stylus tracking force.
Shure SFG-2 Features:
Accuracy to within 1/10 of a gram in primary operating range (1/2 to 1-1/2 grams).
Easy-to-read reference bars for perfect balance and absolute accuracy.
Tracking force is measured with tone arm in actual playing position.
A reasonably accurate stylus pressure gauge is mandatory, and the Shure is good and very cheap. The even simpler, and less expensive Ortofon, which uses pressed dimples to form a fulcrum, work surprisingly well. But, for about $14, you may as well treat yourself to the Shure. -Stereophile, August 1996, p.53, Analog Corner, Michael Fremer.
TNT Review of Shure SFG-2 Dirty deeds done dirt cheap... The Shure SFG-2 force gauge is a blast. Just put it on the platter, set the desired weight, gently place the stylus on the scale and read the result. Even your grandma can do that!