Test for open ground, open neutral, open hot, hot and ground reversed, hot and neutral reversed, correct wiring indicator. Receptacle tester detects standard receptacles to ensure proper wiring. Test capability: 110/125-Volt AC at 50/60Hz in 3-wire outlet Tests conditions: Open Ground, Reverse Polarity, Open Hot, Open Neutral and Hot/Ground Reverse Instant wiring identification for correct/incorrect wiring No battery required
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