low voltage alarm

  1. Rhine400

    12V Low Voltage Alarm/Indicator.

    Hey guys, already got lot of informations out of this forums. THANK YOU FOR THAT. I´m working on little project but can´t best solution. In general I need a simple 12V low batterie alarm (with a low current, cut voltage by potentiometer, 1/60Hz Alarm Tone). I created a circuit with a LM358...