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Fitment: This phase meter can test all speakers of all car, such as small treble, door speakers, subwoofer, etc.
The Main Function: for safely troubleshooting and testing audio systems. Effectively used to test speaker polarity.
Easy to Use: 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 , 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.
Note: Low battery light on indicates that the battery power is low.
Service Guarantee: If the product is not suitable, it can be replaced of within 3 months.If you have any dissatisfaction, please us.

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Specification:
Condition: Brand New
Material: Plastic
Color: Black + Silver
Package Weight: Approx. 139g/4.9oz
#How to use the tester?
the CD with the package include 4 section test music.
section 1: left channel noise
section 2: right channel noise
section 3: phase test
section 4: same as section 3
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 , 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).

Package List:
1 * Phase Meter
1 * CD

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