Probador indicador de batería de plomo ácido digital LED de 12-70 V voltímetro detector de voltaje

Do it again and again. To save and exit Automatically after the screen is twinkling. 1 x Battery Tester. Pull the white button on the backside for about 3s until it shows “1- U” and release it. Pull it again for 1s it shows “2- b” and release it.

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