The Ermenrich Zing ST30 electrical outlet tester is designed to check the voltage and correct connection of the cables of each electrical outlet. The tester must be plugged directly into the socket and the flashing of the light will indicate the presence of any anomalies in the electrical circuit: lack of earth/neutral, neutral/phase reversal or phase/earth reversal. In addition, the specific color code that appears on the tester's screen indicates the correct connection of the cables. The meaning of each code is written directly on the instrument.

Key features:

• 230 V AC
• Detects no ground/neutral
• Flashes in case of neutral/phase or phase/ground reversal
• A special code to indicate the correct connection of the cables