Harpenden caliper
​​
HARPENDEN nutritional assessment caliper, metallic, includes case and manual.
 
The Harpenden caliper is a precision instrument designed for use in performing skinfold thickness measurements (from which estimates of body fat are obtained). The use of this instrument has been well established and documented over the past 40 years.
 
Designed in 1958 in collaboration with DJM Tanner, a prominent force in the use of skinfold measurements in the derivation of body fat measurement.
 
It has been used around the world on projects of international importance and is the most prestigious caliber available. It is considered the gold standard that most researchers use to apply the equations that estimate fat percentage.
 
Dial Graduation: 0.20mm
Measuring range: 0mm to 80mm
Measurement pressure: 10 g/mm2 (constant over range)
Accuracy: 99.00%
Repeatability: 0.20mm
​