AC27 / AC28 Digital Socket Tester – Polarity Detector, Voltage Test, RCD 30mA Test, Circuit Breaker Finder Support (EU/US Plug)

ANENG AC27 / AC28 Socket Polarity Tester

The AC27 / AC28 is a practical plug-in tester designed for quick verification of socket wiring, polarity and safety protection in homes, offices or workshops. By simply inserting the device into a mains outlet, you can identify wiring faults and confirm proper grounding.

Both versions include a 30mA RCD (residual current device) test that checks whether leakage protection trips correctly. The AC28 version adds an LCD screen showing the measured mains voltage, while the AC27 provides LED-based indication without voltage display.

This tester requires no batteries and supports 250V systems at 50Hz/60Hz with EU or US plug variants depending on selection.

Technical note: This device is designed for wiring/polarity and RCD checks. It is not a full circuit breaker tracer system and should not replace professional electrical inspection equipment.

• 1 × AC27 or AC28 socket tester (EU/US variant as selected)
• 1 × Retail box