Portable digital socket tester with polarity and phase checking functions and color display.

Try it; you won't be disappointed.

Portable design: This compact tool is ideal for everyday use. It fits easily in your tool bag without taking up much space.

Large color display: Its large screen allows for clear data reading, even in the dark.

This tool detects the polarity of three-phase wiring, checks for the presence of a residual current device (RCD), and tests wiring quickly and accurately.

RCD testing: Before using this function, turn off the power to all electrical devices. Then plug the tester into the outlet. When the screen displays "Correct wiring," press the RCD button (hold it down for 3 seconds).

Versatile Use: This tool can be used in various locations, such as homes, factories, laboratories, etc.

Caution:

If the phase voltage is too high or too low, this may be due to an overload or an insufficient/oversized power supply.

The phase voltage is usually less than 2 volts. Excessive voltage may be due to leakage current, an imbalance in the three-phase network, or interference.