Feature(may vary by option.)

●This phase meter can test all speakers of all car, such as small treble, door speakers, subwoofer, etc.
●Perfect for safely troubleshooting and testing audio systems.
●FH-168 Car Audio System Of Speaker Polarity Tester Phase Meter Phasemeter
●Size: 108 x 70 x 25mm./ approx.(4.25 x 2.71 x 0.98 inch)
●Color: Black

[NO battery]

[With battery]

Description

Product description:
Auto Car Speaker Audio DIY Phase Tester PH Phasemeter Black
Perfect for safely troubleshooting and testing audio systems. This phase meter can test all speakers of all cars, such as small treble, door speakers, subwoofer, etc. low battery light on indicates that the battery power is low.

Usage method：
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.
Then press the test button on the phasemeter, 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 that the speaker output is in negative phase (reversed connection).

Specification:
Material: Plastic
Color: Black
Size: 108 x 70 x 25mm./ approx.(4.25 x 2.71 x 0.98 inch)

Package Include:
1 x FH Phase Meter
1 x test cd
1 x battery