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Low Voltage Alarm / Voltmeter for $5

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Posted (edited)

The low voltage alarm has two leds, green when above threshold, red with loud alarm when below.  Threshold can be set to any value with a smal pot adjuster.

And $5 is in my budget!

Buy the following 2 items on ebay and make it up for your panel however you want.  I put them both into a 2" round instrument hole and set the alarm to 11.5v

 

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Edited by MN Kitfox 2

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Posted

Great stuff! I want to put a voltmeter in my new Avid. This looks perfect without having to cut another 2” hole. 

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Posted

Yep, i just snipped the ears off of the voltmeter, "painted" the edges black with a sharpie, and put a dab of Goop silicone glue on the back.  Then stuck it where I wanted it. 

It is REALLY bright though.  Great for a sunny day, but I'll be trying some layers of tinted plastic over it so I can see out the windshield at night LOL!

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