Body fat scales are similar to regular scales but with metal footplates. To measure body fat, the scale sends an electrical impulse up one side of your body and down the other. The premise behind this test is that body fat is a poor conductor of electricity, while lean muscle tissue is a good conductor of electricity. If a body contains a large amount of body fat, it will impede the electrical current more than a body with a large amount of muscle tissue. You can find body fat scales in local fitness facilities and in chain home good stores. Most scales are affordable and priced under $100 (as of 2010).
Tanita BF680 Duo Scale
The Tanita BF680 body fat scale comes with a body fat monitor and weight scale, accommodating up to 300 pounds. The scale emits a low-level electrical impulse to determine your body fat and has the option to measure body fat for children, adults and athletes. The BF680 stores results for up to two people, has a body water percentage option and has an LCD screen powered by 4 AA batteries. It is currently priced under $100 (as of 2010).
Health-O-Meter BFM-681-63
The BFM-681-63 comes with a body fat monitor and weight scale accommodating up to 330 pounds. The BFM uses a small electrical impulse to calculate your body fat with conductive film instead of metal plates. The scale also monitors hydration, BMI and muscle mass. Weight change statistics are recorded for up to four users, and it is currently priced under $100 (as of 2010).
Taylor 5593 Scale
The Taylor 5593 body fat scale uses a small electrical impulse and metal plate to measure your body fat and hydration levels. The scale comes equipped with modes to measure body fat for normal and athletic types. The scale also accommodates weights of up to 350 pounds. The 5593 can store results for up to four users and is currently priced under $50 (as of 2010).
Whytner Digital Glass Body Fat & Water Scale
The Whytner uses small electrical impulses and a metal plate to measure body fat percentage and hydration levels for up to 10 users. The scale accommodates weights of up to 330 pounds and operates using a 9-volt battery. This scale is currently priced under $100 (as of 2010).



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