Fat Track Digital Skinfold Caliper is relatively inexpensive device for the measurement of percent body fat, and comes from the same company that makes the Accu-Measure Caliper.

The Fat Track Gold digital skinfold calipers are programmed with 3- and 7-site Jackson-Pollack formulas for estimating body fat %. If you want you can also use the caliper in a non-programmed mode to take skinfold measurements and use other formulas. It also measures and calculates lean body mass. You can store and program up to 50 user profiles, including the last 3 readings for each user. caliper is simple to use and comes with detailed instructions. It\\\'s body fat calculation is based on the Jackson-Pollock three-site formula, with a measurement taken in the upper, midsection and lower body. Also, it can store up to three personal profiles and has a statistical report mode that displays your maximum and minimum readings at each measuring point. It has a digital display which show the results of each pinch, and allows you to take several samples of each measurement site. The caliper stores three measurements and then automatically calculates and displays body fat percentage with the touch of a button. FatTrack also has a \"self-calibration\" feature that claims to maintains a lifetime measuring accuracy. It requires 2 AA batteries.