Stylus force digital scales

If you don't want to mess around with modifying a scale as
Doug suggests, then pick up a Cartridge Man scale. It's
spendy, but is designed well and is rechargeable.

Although, I may be inclined to try Doug's excellent idea if
my Cartridge Man scale dies on me in the future.

After buying and trying many digital scales used for the specific application of measuring tracking force, I agree with Don. This version is clearly superior when compared to similar but smaller scales that use button style batteries. It has the best most solid construction quality, has a non-magnetic platform, measures at the proper height, and provides reasonably consistent readings.

I have one and it works well. It takes watch batteries so pricey to replace. I had the AcousTech- $80, pc board made by the same company- and it operated on two AAA batteries and had an aluminum case. They do stop functioning if you drop them. Both had very repeatable measurements and a calibration weight. The AcousTech held calibration well. Not so much the Amazon version.

one word of caution

If you are using a Clearaudio table with one of the magnetic field arms, you must make sure that the scale measuring point is at the exact same height as the record surface otherwise it could be off considerably.

I use the cheaper model electronic scales ( I have two), and the clearaudio teeter totter scale. When using the cheap electronic ones, I just make sure that I verify their accuracy by measuring the weight of both a penny (2.5 grams) and a nickel (5 grams). Batteries are low when they are off on mine.
http://www.usmint.gov/about_the_mint/?action=coin_specifications

Doug, any magnetic attraction with not affect the weight measured. You will see the scale read negative as the cart. nears the scale; but that's because it's being supported by the cueing mechanism. Once the cart. is released all its weight is on the scale and will be measured, magnetic attraction or not. Think about it.