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CAT # MK-189 (1 Review) Write a Review

$9.95 each
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Product Description
Easy to build, only 2 wires to connect (connect after ignition). Uses multi colour 3mm LED... green: 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. 30 x 20mm (1.18 x 0.78" board).

Note: Kits cannot be returned or exchanged once assembly has begun.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
(This item was manufactured prior to August 31st, 2018)

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Customer Reviews (1 Review)

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12VDC Car Battery Monitor kit

Reviewer: from Eastern Washington Stat, USA

This is a very clever, simple to build kit that does everything advertised! I have several in use, especially with my solar power system.
Oh, by the way. DO NOT REVERSE the polarity!! I inadvertently did this and INSTANT destruction!

2 of 2 people found this review helpful. Do you? Yes No  Certified buyer

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