Difference Between Accuracy and Precision

What is Accuracy?

Accuracy refers to how close a measurement is to the "true value".

• Example: If you weigh a stone that actually weighs 100.00 kg and the scale shows 100.01 kg, the accuracy is high. If it shows 105.00 kg, the accuracy is low.

What is Precision?

Precision (or Repeatability) is how consistently you get the "same result" when you repeat the measurement under the same conditions.

• Example: If the scale shows 105.00 kg every single time, this scale is very precise (consistent) but not accurate (wrong value). This can be fixed with calibration.

Amazeng ZMA Series deliver both accurate and precise (repeatable) results thanks to their high-precision ADCs and factory calibration.