UL 1439 Standard Sharp Edge Tester , Edge Sharpness Tester 

Applications
This sharp edge tester is made as per standard UL1439 and it is used for testing the products of electrical equipment including toys, computers, daily home electrical equipment and see whether these equipments has sharp edges which will harm people. It is a equipment of safety testing.
 

Specifications
Size:184×35×52 mm
Weight:132 g
Accessories: 21pcs testing cap

Way to use

1.Put the pressure testing cap on the tester

2.Put the pressure testing cap closes to the tested edge and move the cap along the tested edge for 2 inches with a 0.68kg force, then return to the starting point. The whole distance will be 4 inches

3.After the movement, check the pressure testing cap. If the outermost 2 layers(the simulative skin) have been scratched off, the edge is considered as the sharp edge.