Modernist cooking requires the use of two types of accurate scales. One of these is a "gram scale" with the capability to weigh the small amounts of modernist ingredients used to achieve the results desired in modernist cooking. Typical amounts used in recipes range from 0.1 to 20.0 grams.
The gram scale should have 0.1 gram increments. Some have 0.01 gram increments, but this is a bit of an overkill for most applications. The maximum range of the gram scale is not normally important since most can handle 500 to 1,000 grams.
It is also important the gram scale has a "zero" or "tare" function. This allows the scale to be reset to zero when making measurements. For example, often when making a measurement cooks use a small tray or slip of paper to put the ingredients on. That can be placed on the scale and then the tare button push to zero the scale. Then as you add the ingredient the weight displayed is just for the ingredient being added.
These gram scales are what we recommend to our friends and family. While one might be a better fit for you personally, you can't go wrong with any of them. These are mainly with a focus on home cooks (see below for professional machines).
Have you used something that we don't cover here? Let us know what you use and why you love it!