On-off test: can detect open circuit, path, virtual circuit and real circuit. Positive and negative pole test: green light indicates positive polarity and red light indicates negative polarity. Sharp stainless steel probe for piercing wires, also for hard to reach tight areas.
This product would be ideal for electricians, hobbyists, or anyone requiring a portable and versatile device to quickly test and verify voltage, polarity, continuity, and lighting in electrical circuits at home or on the job.