![Harpenden-slide.jpg Harpenden-slide.jpg](/images/stories/virtuemart/product/Harpenden-slide.jpg)
![Harpenden-slide.jpg](/images/stories/virtuemart/product/resized/Harpenden-thumb.jpg)
The use of this instrument has been well established and documented over the past 40 years
It is the only Caliper CE marked under the Medical Devices Directive 93/42/EEC for a Class 1 Device with Measuring Function and is calibrated using masters traceable to National Standards.
* Dial Graduation: 0,20 mm
* Measuring Range: 0 mm to 80 mm
* Measuring Pressure: 10 gms/mm2 (constant over range)
* Accuracy: 99.00%
* Repeatability: 0,20 mm