Grelea 9003 is a handheld device designed to provide users with a range of capabilities, including:

• Non-contact voltage detection: Grelea 9003 can detect the presence of AC voltage without making physical contact with the source, making it a safer option for electrical work.

• Continuity testing: The device can also be used to test the continuity of electrical circuits, ensuring that current is flowing properly.

• Polarity testing: Grelea 9003 can determine the polarity of electrical outlets, which is useful for identifying the correct wiring configuration.

• Flashlight: The device includes a built-in flashlight for illuminating work areas in low-light conditions.