Polarity Tester

GVS139B - CRYSOUND

GVS139B Polarity tester adopts pulse test, which is not affected by environmental noises. It can quickly and automatically identify the positive and negative polarity of loudspeakers, headphones, televisions, stereos, speakers, and voice coil receivers. It is suitable for production lines. Meanwhile, you can use a foot switch to switch between an external sweeper, F0, and impedance meter. It is the most suitable for the full-featured detection of speakers on production lines.