0-80mm Body Fat Caliper Slim Guide Skinfold Measure Meter Fitness Slim Keep Health Tester 
Features:
Easy to use and Portable.
Follow exercise effectiveness, provide effective guidance data.
Slimmer Can measure oneself reduce is moisture or superfluous adipose.
Professional Useful for personal trainer.

Specifications:
Material: Plastic
Measurement range: 0-80mm
Weight: 168g
Size: 27.5 X 24.5 X 1.5cm/10.63 X 9.65 X 0.59"
Packaging: PE bag
Color: Black,White,Red,Blue,Beige

I. Measurement Body Part:
Upper arm - The midpoint of the right arm shoulder hump to the radial head connection, namely the abdominal position of triceps brachii.
Back - Under the right Infrascapular region. Abdomen - Right abdominal periumbilical 1cm.
In addition to the above areas, neck, chest, waist, front and back of thigh and calf gastrocnemius can also be measured according to the needs of the study.
It should be noted that,The thickness of subcutaneous fat measured by sebum is double the sum of skin and subcutaneous adipose tissue.

II. Calculation Formula:
1. According to the method that calculating the body density based on the thickness of subcutaneous fat,now we refer to the formula of calculating the body density of Japanese teenagers, which is: (X= Infrascapular region + upper arm sebum (mm))
Man:
15-18T Body density = 1.0977-0.00146X
Over 19T Body density = 1.0913-0.00116X
Woman:
15-18T Body density = 1.0931-0.00160X
Over 19T Body density = 1.0897-0.00133X
2. Calculate body fat %
Use Broxek (1963) modified formula to measure body fat %,its formula is: 
Body fat %= (4.57/ body density -4.142) X 100
Body fat weight = body weight (kg) X body fat %
Net weight (fat-free weight) = weight (kg) - body fat (kg)

Notes:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.
1 X Body Fat Caliper
1 X Manual