It is designed according to the provisions of ANSI-NEMA WD 6 2002. Specific products are as following:

1. Plug and socket gauge:  125V/15A,one bipolar plug and one bipolar socket.

2. Plug and socket gauge: 125V/20A,one bipolar plug and one bipolar socket.

3. Plug and socket gauge: 125V/30A,one bipolar plug and one bipolar socket.

4. Plug and socket gauge: 250V/15A,one bipolar plug and one bipolar socket.

5. Plug and socket gauge: 250V/20A,one bipolar plug and one bipolar socket.

6. Plug and socket gauge: 250V/30A,one bipolar plug and one bipolar socket.

7. Plug and socket gauge: 125V/15A,one bipolar grounding plug and one bipolar grounding socket.

8. Plug and socket gauge: 125V/20A,one bipolar grounding plug and one bipolar grounding socket.

9. Plug and socket gauge: 125V/30A,one bipolar grounding plug and one bipolar grounding socket.

10. Plug and socket gauge: 125V/50A,one bipolar grounding plug and one bipolar grounding socket.

11. Plug and socket gauge: 125V/15A,one bipolar grounding plug and one bipolar grounding socket.

12. Plug and socket gauge: 250V/20A,one bipolar grounding plug and one bipolar grounding socket.

13. Plug and socket gauge: 250V/30A,one bipolar grounding plug and one bipolar grounding socket.

14. Plug and socket gauge: 250V/50A,one bipolar grounding plug and one bipolar grounding socket.

15. Plug and socket gauge: 277V/15A,one bipolar grounding plug and one bipolar grounding socket.

16. Plug and socket gauge: 277V/20A,one bipolar grounding plug and one bipolar grounding socket.

17. Plug and socket gauge: 277V/30A,one bipolar grounding plug and one bipolar grounding socket.

18. Plug and socket gauge: 277V/50A,one bipolar grounding plug and one bipolar grounding socket.

19. Plug and socket gauge: 347V/15A,one bipolar grounding plug and one bipolar grounding socket.

20. Plug and socket gauge: 347V/20A,one bipolar grounding plug and one bipolar grounding socket.