Series Resonance, Hipot Tester, High Voltage Test Equipment manufacturer / supplier in China, offering 0-20KΩ Factory Direct Shielding Clothing Surface Resistance Test Device Low Resistance Tester, 20Ω -999.9KΩ Safety Shoes Conductive Shoes DC Resistance Tester for Live Working, 0.1Ω -25Ω Shielding Clothing Surface Resistance Test Device Shielding Clothing Low Resistance Tester for Live Working and so on.