Good points Ed.

Also, tire tread temps can tell you a lot about your alignment and pressures
and hub temps after a long drive can alert you to dragging brakes or dry
bearings.

Getting readings from differently coloured cars parked in the sun will tell
you why I will never have a dark coloured pop-top!

On Tue, Jul 5, 2011 at 7:11 AM, Edward Maglott <emaglott3@gmail.com> wrote:

> Yes it does have a laser, I didn't see that in the online description.
>  Good
> point about the emissivity.  I often compare things like one coolant hose
> vs
> another, the 4 different exhaust headers, one front wheel vs the other,
> different parts of the same radiator or transmission case, etc.  Measuring
> relative temperatures rather than an absolute value.  Play around with it
> and you can probably get a feel for how accurately different surfaces read.
>
>
> Edward
>
> On Tue, Jul 5, 2011 at 9:34 AM, Larry Alofs <lalofs@gmail.com> wrote:
>
> > One important issue to keep in mind is the emissivity of the surface.
> > You may get inaccurate readings when measuring the temperature of a
> > shiny object.  A surface that reflects the IR away rather than
> > absorbing it as heat will also give off less IR than normal for a
> > given temperature.  One solution to this problem is to apply a piece
> > of black tape to the object in question.
> >  HF used to sell a small IR thermometer for about $10 coupon price
> > that had a tutorial about this in its manual.  Unfortunately that
> > instrument was powered by expensive button cells.
> >   These things are great for physics teachers!
> >
> > Larry A.
> >
> >
> >
> >
> > On Tue, Jul 5, 2011 at 8:50 AM, John Meeks <vanagon@gmail.com> wrote:
> > > Now that we have these shiny new laser guided temp guns, does anyone
> know
> > > the best places to take measurements and what the expected temps should
> > be?
> > >
> > > John Meeks
> > > '91 Vanagon MV
> > > Northern Michigan
> > >
> > > Vanagon Rescue Squad
> > > www.vanagonauts.com
> > >
> > >
> > >
> > > On Tue, Jul 5, 2011 at 6:19 AM, John Reynolds <transporterjr@yahoo.com
> > >wrote:
> > >
> > >> It does have a lazer beam!
> > >> PS - my brother is the one who passed this lead to me - he'll be happy
> > to
> > >> hear all the people taking advantage of it.
> > >> "I'm confused now.... Does the one on sale at Lowes NOT use a laser
> > beam?
> > >> Thanks, Anthony
> > >> '89 Syncro GL (Hidalgo)"
> > >>
> > >
> >
>

--
Jake

1984 Vanagon GL 1.9 WBX - 'The Grey Van'
1986 Westy Weekender/2.5 SOHC Subie - 'Dixie'

Crescent Beach, BC

www.thebassspa.com
www.crescentbeachguitar.com
http://subyjake.googlepages.com/mydixiedarlin%27