Purchase Qty. Reference FOB Price
60-499 Pieces US$5.50
500-999 Pieces US$5.00
1,000+ Pieces US$4.50
Product Description
Socket polarity Test Insert tester into a standard three-hole power socket. Then observe the indicator light and test results of the comparison table, determine whether the socket wiring is correct, and then remove the tester, when the detection of the wrong wiring, please find a professional ...