1. Automotive System: The phase polarity tester is ideal for safety testing and troubleshooting car systems for everyday use.

2. Function: Polarity tester can detect the correctness of the positive and negative connections of speakers, such as door speakers, subwoofers, small tweeters, etc.

3. Battery Indicator: The phase meter low battery indicator illuminates to indicate a low battery and is useful for testing speaker polarity.

4. Long Durability: ABS shockproof housing, sturdy and durable, ensures a long life of your phase tester and reduces maintenance costs.

5. Compact Design: Unique fashion design, compact and lightweight, easy to use, professional manufacturing, high reliability.

Spec:

Item Type: Speaker Polarity Tester

Material: ABS

Battery Type: 1 9V 6F22 dry battery (not included)

Uses: It can be used as a tuning assistant, mainly used to detect whether the positive and negative poles of the speaker are connected correctly.

Package List:

1 x Speaker Polarity Tester

1 x Test CD