Qiilu Speaker Polarity Tester, Auto Car Audio Speaker Horn Tester Phase Meter Phasemeter
[ Wide Application ] --- This phase meter can test all speakers of all car, such as small treble, door speakers, subwoofer, etc. for safely troubleshooting and testing audio systems.
[ 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.
[ How to Use the Tester ] --- 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.
[ Design ] --- 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).
[ High Reliability ] --- Low battery light on indicates that the battery power is low. Effectively used to test speaker polarity.
3.94 x 3.94 x 3.94 inches; 4.59 ounces
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