Description
Excellent tool for audio system test. Perfect for durably troubleshooting or testing car audio systems. You can use this phase meter to test car audio systems speakers, like subwoofer, door speaker and small treble and more.

Features
Color: Black.
Material: ABS, electronics.
Size: About 15X13X4.5cm/5.9X5.1X1.7in.
Excellent for safely testing and troubleshooting audio systems, convenient for daily use.
Can test all speakers in car, such as door speaker, subwoofer, small treble, and more.
The low battery indicator lights up to indicate that the battery is low and is effectively used to test the polarity of the speakers.
Unique fashion design, perfect replacement for old or damaged, extending service life and reducing maintenance costs.
Designed and manufactured according to the original standard, easy to use, economical and practical.
Effectively used to test speaker polarity.
Professional manufacturing, high reliability.

How to use:
Play section 1 or 2, can check the left/right channel connection is right or not.
Play section 3 or 4, the sound speaker will produce a fixed frequency signal.
Put it in car cd player, and play section 1 or 2, check if left/right channel connection is right.
Play section 3 or 4, the sound speaker will produce a fixed frequency signal, then press test button.
3 green light flash and 1 red light indicates that the speaker output is in positive phase correct connection); 3 red light flash and 1 green light indicates negative phase (reversed connection).

Packing list
1 x Speaker Test Phase Meter
1 x CD