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Non-Invasive Moisture Meter


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#1 twerki78

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Posted 01 November 2012 - 08:18 AM

Anyone used one on a caravan? I don't fancy making pin holes everywhere so I wondered if one of these might work? I wonder how well it would work on a thin caravan wall with an aluminium skin?

http://www.kingfishe...re_meter#MS-128

#2 ducati996

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Posted 01 November 2012 - 08:29 AM

Hi,just purchased a protimeter mini which is what a lot of caravan dealers use when checking for damp not cheap at about £150 but an excellent meter does however have pins but they are very small you can barely see them.
Check our caravan every month and i use the same pin holes,meter is very good ,a bit to good it has found a bit of damp in our caravan :[

#3 matelodave

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Posted 01 November 2012 - 08:47 AM

I shouldn't think it would work very well if at all. They rely on capacitive effects and putting a ginormous sheet of aluminiun behind it will at best make the reading inaccurate.

You should also realise that damp testing is not an absolute test as the atmosphere and other factors can make the readings vary from day to day.

Ideally the van should be aired for several hours on a nice dry warmish day so that any condensation can evaporate and the temperature and humidity inside the van can equalise. It's not much good going in when it's cold and damp and you are breathing condensation everywhere as well. You need to prod around and get an average all around the van so you get an idea of what normal is and then any places where the reading varies significantly needs further inspection. Make sure that the probes dont touch the rubber window surrounds (some rubber has carbon it it and can be a bit conductive) or anything else tha may affect the reading.

Make notes of the readings and where they were taken and you can then use them for comparison in the future

#4 CommanderDave

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Posted 01 November 2012 - 10:10 AM

IMO it would not work as the walls are plastic covered . I cant see a problem checking with a normal meter as you can find places to check normally without it showing in backs of all the cupboards/bunk lockers and lifting back the window seals carefully so not to notice .



Dave

#5 thomasoes

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Posted 01 November 2012 - 10:55 AM

The cheap ones on ebay are just as good .Save your money for going away

#6 thomasoes

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Posted 01 November 2012 - 11:02 AM

Anyone used one on a caravan? I don't fancy making pin holes everywhere so I wondered if one of these might work? I wonder how well it would work on a thin caravan wall with an aluminium skin?

http://www.kingfishe...re_meter#MS-128


Try here http://www.ebay.co.u...=item1e721142e8

Anyone used one on a caravan? I don't fancy making pin holes everywhere so I wondered if one of these might work? I wonder how well it would work on a thin caravan wall with an aluminium skin?

http://www.kingfishe...re_meter#MS-128


http://www.ebay.co.u...d=130762752744

#7 thomasoes

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Posted 01 November 2012 - 11:08 AM

Try here http://www.ebay.co.u...=item1e721142e8



http://www.ebay.co.u...d=130762752744


Even cheaper http://www.ebay.co.u...=item51a1b8145d

#8 twerki78

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Posted 01 November 2012 - 12:13 PM

I have a Stanley damp meter which I brought from B and Q, prong type. I also got a rubbish one off ebay to start with but that didn't even get used.

I used the Stanley one in our old damp riddled van, but now we have a new to us van we want to keep it in the best of condition that we can, the downside with the Stanley meter is that it doesn't lend itself to getting the prongs in behind the trim around the top of the wall and the roof, it would be fine around windows lifting the rubber and testing. Found the non-invasive type and wondered if they would be any good.




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