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±15% accuracy
Features:This is a great tool set for refrigerant testing
Model: YQK-240 16mm - 240mm
copper tube and some thin tubes
Uni-T 521 Digital Earth Tester (UT521) 1000V insulation tester ±15% accuracyDescription: UT520 series grounding resistance tester with backlit display and battery low voltage, keep and store the data, automatic shutdown function to save power. Three line can be used as precise measuring, also can make a simple two line measurement. Can be applied to measure all kinds of electric power system, electrical equipment, lightning protection equipment of the grounding system, grounding resistance grounding voltage measurement.
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