It is used for safety testing.Can be used to determine whether there is a risk of scratching your finger.Sharp Edge Tester meets the standard requirement of UL1439D, and it is used for testing whether the sharp edge of the electrical products, such as computers, daily household appliances and electronic equipments, is hazardous to user in touchable places.Instrument manufactured according to the relevant standards UL1439,Produced with high quality material and correct dimensions.
as shown in picture, it contains the test cap（20PCS ).
Sharp Edge Tester Caps: product link:https://www.amazon.com/dp/B07PMZVFGL ● Maybe you need to use Calibration certificate: product link:https://www.amazon.com/dp/B08H497P39.
The patented structure that "prevents elastic decay" is applied.
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