12 V Car Battery MonitorThis small circuit is of great value to check your car battery status.Features easy to build in only 2 wires to connect (connect after ignition) uses multi-color 3mm LEDgreen: battery OK Slow pulsing (green): battery OK or charging red: battery voltage is low red blinking: battery is being overcharged includes: board to wire connector Specifications dimensions: 30x20mm / 1.18 x 0.78" (board)
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