Digital Voltmeter for under 2$
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Any idea if this could be used as an ohm meter to monitor water temps from the factor water temp sensor? It should be 0-5k ohms resistance.Leave a comment:
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Where did you buy the voltmeter that you used to do upgrade your check panel?I recently integrated the voltmeter into the check control panel. plug and play no external wiring.
It looks like this.
https://www.flickr.com/photos/408214.../in/datetaken/
https://www.flickr.com/photos/408214.../in/datetaken/
https://www.flickr.com/photos/408214.../in/datetaken/
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One I bought was way to big so I am about to take it apart and play with putting it somewhere elseLeave a comment:
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Yes, I meter it from the case. There are 3 manufactures for check panel. VDO, bosch, and hella. The hella is the easier to take apart. The VDO is lot more harder and the Bosch is almost impossible without breaking the face cover. The internals design is all different, but the harness is the same for all.Leave a comment:
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Looks great.
So did you take meter out of the case and then glue it or something inside the check panel?Leave a comment:
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Couple more pics added. I may do a write up on this.
https://www.flickr.com/photos/408214...in/dateposted/
https://www.flickr.com/photos/408214...n/photostream/Leave a comment:
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Looks awesomeI recently integrated the voltmeter into the check control panel. plug and play no external wiring.
It looks like this.
https://www.flickr.com/photos/408214.../in/datetaken/
https://www.flickr.com/photos/408214.../in/datetaken/
https://www.flickr.com/photos/408214.../in/datetaken/
Leave a comment:
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I recently integrated the voltmeter into the check control panel. plug and play no external wiring.
It looks like this.
https://www.flickr.com/photos/408214.../in/datetaken/
https://www.flickr.com/photos/408214.../in/datetaken/
https://www.flickr.com/photos/408214.../in/datetaken/
Last edited by dsphil; 09-20-2015, 06:11 PM.Leave a comment:
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Here are all the measures from the one I have




I think this is the one I bought from
http://www.ebay.com/itm/XD-3-New-Min...item19feade805
I am really sorry guys I didn't even know this thread was approved by the admin!!Leave a comment:
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i bought this one
http://www.ebay.com/itm/111464691538...%3AMEBIDX%3AIT
then i gutted a hazard switch and mounted it inside.
finished product.
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Sorry guys I didn't know this thread has been approved. I'll double check and get the exact measurements. Maybe the one I got was direct fit. But I am sure I ordered it from the same seller!Leave a comment:
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Hello Folks
so few people wanted to make a DIY thread for the digital voltmeter.
I understand some people say 50+ bucks for voltmeter is too much.
so here is the cheapest way to do it.
its simple and easy.
since I wasn't on rush I ordered one from China. it took about 24 days to arrive!
here is the ebay link ~>
http://www.ebay.com/itm/0-56-DC-3-2-...item4197333739
I am not trying to do sale or anything there are many sellers has the same item. The size you need is 0.56".
There is also a US sellers and you can get it roughly for less than 10 bucks. (just search on ebay)
I used a 2 wire type voltmeter. Connected the red (positive) to the plug of the radio power and the black (ground) to the radio case/ground. So that it will work with the ignition.
The red wire connected to the purple ish wire and that goes to the radio plug.
and here is the the ground.
and here is the end
Thats it.
Again. I am not trying to sale anything or advertise. i am trying to help thats all.
also there are multiple ways to run the positive and negative wires. with my old e30 I used to run with the emergency power switch.
hope that helps
Cheers.
the one I got is also bigger than OP'sLast edited by mike87; 08-08-2015, 10:18 AM.Leave a comment:
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The one I got is bigger than the one showed on the OP pictures no way it will fit without cutting and trimming.Leave a comment:

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