This price is so low, it’s practically underground: $18.49. 0~3500V Semiconductor Withstanding Voltage Tester Transistor Tester Diode MOS Triode LED Voltage MOV Withstand Voltage Detection – Red.
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Banggood
Warehouse in China.
Link: 0-3500V Semiconductor Withstanding Voltage Transistor Tester
Price: $18.49
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