Re: electronic meters (moisture)

[Guest guest]

Bill,

Thank you. I noticed the meters you are looking at are without the pins. Do

you know if the invasive meters, with the pins will measure a greater depth

and or if they are more sensitive to moisture? I am assuming the puncture

size is less than the size of a small nail. I am at a complete loss in

understanding the different types of moisture meters and all that is involved

with

them.

In a message dated 7/20/2006 8:59:55 PM Central Standard Time,

b.b.bb@... writes:

I haven't used these, but I was looking for one... The first one linked

here (Extech), claims the deepest measurement depth (1.25 inches). The

third one (Tramex) is an analog meter. These three are in the $295- $349

range. How a meter needs to be held (in direct contact?), " aimed " and

oriented when used, may limit its use in tight corners...

Does anyone have experience with these, or similar moisture meters?

_http://froogle.http://froohttp://frohttp://froogle.http://froo_

(http://froogle.google.com/froogle?q=Extech+Moisture+Meter+MO300)

_http://froogle.http://froohttp://frohttp://froohttp://froogle.http:_

(http://froogle.google.com/froogle?q=Protimeter+Aquant+Moisture+Meter)

_http://froogle.http://froohttp://frohttp://froogle.http://frohttp_

(http://froogle.google.com/froogle?q=Tramex+Moisture+Encounter+Plus)

Bill

At 10:34 AM 7/20/2006, _bobbinsbiomed@bobbins_

(mailto:bobbinsbiomed@...) wrote:

>

>A short while back the subject of electronic meters to measure for moisture

>content in the walls was briefly brought up on this site but did not really

>go anywhere. Has anyone been using any of these instruments with any

>success to assist them in the identification of the source of their

illness?

>

>Does Carl or anyone knowledgeable in this area know if there are any meters

>that are known to be accurate that can be purchased for under $300,

preferably

>around $150 or so. I would like to purchase one and found many online, but

>I have no idea as to the quality of any brand.

>

>

>

[Guest guest]

Off the subject but I never saw froogle google.

I assume that is for discount shopping?? I'm

interested in this topic also.

--- Bill Kingsbury <b.b.bb@...> wrote:

>

>

http://froogle.google.com/froogle?q=Extech+Moisture+Meter+MO300

>

http://froogle.google.com/froogle?q=Protimeter+Aquant+Moisture+Meter

>

http://froogle.google.com/froogle?q=Tramex+Moisture+Encounter+Plus

>

> Bill

>

[Guest guest]

,

I have used several different types of meters to measure moisture content

and the Tramex encounter is the best. It's only drawbacks are that it can't

get into a space less than about four inches or take readings on surfaces

that are flat for about that width by about six inches.

Moisture meters are tricky to use. They measure conductivity so concealed

metal (like a drywall corner bead) or dissolved salt (from the ocean or

urine)can make surfaces appear wet when they are dry.

The moisture content of surfaces also varies with relative humidity (RH) so

wood that is " dry " might appear damp in high humidity. (A very rough rule of

thumb for wood: divide the RH by 5 to get the approximate expected moisture

content.) For drywall, you must compare different surfaces: known dry with

suspected wet.

It takes a fair amount of practice to use moisture meters correctly.

C. May, M.A., CIAQP

May Indoor Air Investigations LLC

1522 Cambridge Street

Cambridge, MA 02139

617-354-1055

www.mayindoorair.com

www.myhouseiskillingme.com

>8. Re: electronic meters (moisture)

Posted by: " Bill Kingsbury " b.b.bb@... proxo2002

Date: Thu Jul 20, 2006 6:59 pm (PDT)

>I haven't used these, but I was looking for one... The first one linked

>here (Extech), claims the deepest measurement depth (1.25 inches). The

third one (Tramex) is an analog meter. These three are in the $295- $349

range. How a meter needs to be held (in direct contact?), " aimed " and

oriented when used, may limit its use in tight corners...

Does anyone have experience with these, or similar moisture meters?

http://froogle.google.com/froogle?q=Extech+Moisture+Meter+MO300

http://froogle.google.com/froogle?q=Protimeter+Aquant+Moisture+Meter

http://froogle.google.com/froogle?q=Tramex+Moisture+Encounter+Plus

Bill

At 10:34 AM 7/20/2006, bobbinsbiomed@... wrote:

>

>A short while back the subject of electronic meters to measure for moisture

>content in the walls was briefly brought up on this site but did not really

>go anywhere. Has anyone been using any of these instruments with any

>success to assist them in the identification of the source of their illness?

>

>Does Carl or anyone knowledgeable in this area know if there are any meters

>that are known to be accurate that can be purchased for under $300, preferably

>around $150 or so. I would like to purchase one and found many online, but

>I have no idea as to the quality of any brand.

>

>

[Guest guest]

Does anyone know if these meters simply measure resistance? (wet

objects are often electrically conductive, in proportion to their salt

and moisture content, however, the resistances are high, so a very

sensitive meter with input amplification is probably required.)