Picture 1

For the accuracy of counting, a proper item gap should be left during testing, generally around 20cm. If it is too short, the genuine product will not be counted.

Clear the genuine product (D), clear the defective product (E), clear the total number (F), just press it shortly. (The key is on the left.)

The counting is for reference only, the error of counting will become larger if the material is inspected thin.