What's this thing?
Discussion
![](https://i.postimg.cc/Fs0fdPs3/20240524-125747.jpg)
![](https://i.postimg.cc/T2zLP8GT/20240524-125812.jpg)
Rooting around the passenger shelf in the car and found this thing that goes into the cigarette lighter.
It then lit up with 11.7 and 12.0.
Am I being really stupid and it's a thermometre which is hopelessly wrong?
![confused](/inc/images/confused.gif)
It doesn't have any connections to it btw.
Just seems an odd little thing.
![getmecoat](/inc/images/getmecoat.gif)
vixen1700 said:
It wasn't running, I was just sitting in the supermarket car-park waiting for my mrs. , found it, stuck it in the fag-lighter and it lit up.
I'll have to have a look when the car's running.![smile](/inc/images/smile.gif)
I had a phone charger with a voltmmeter built in, I noticed once daynthat I was on 12.something whilst going along the motorway - alternator had failed, it allowed me to exit the motorway and find a garage I'll have to have a look when the car's running.
![smile](/inc/images/smile.gif)
![smile](/inc/images/smile.gif)
As above, a voltmeter. eg, https://www.ebay.co.uk/itm/156191349734
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