i observed no backlight when running on battery power and pushing the
light button.  perhaps it could have been my batteries but it seemed to
function fine on batteries otherwise.

jonathan

On Thu, 21 Apr 2005, Edward Maglott wrote:

> When not plugged into 12v, the light only comes on when you press the big
> round "light" button.  Stays on a few seconds, then turns off.  As someone
> else noted, and I have observed, the temp reading varies slightly on 12v vs
> battery power.
> Edward
>
> At 07:39 PM 4/21/2005, you wrote:
> >Entity Jonathan Farrugia uttered this profundity:
> >
> > > all the stores in close distance to my house showed them but there was
> > > only the one on the shelf at the closest store, which i bought :).
> > > i don't know if > it stated in the web description but it runs on either
> > > two AAA batteries or 12 volts, to run the temperature functions that is.
> > > i had wondered about it being a parasitic drain on the system.
> >
> >  Cease thy wonderment! I measure it at 27 mA per hour, which is .648 amp per
> >day. Hardly significant for daily driving.
> >I notice the backlight is on all the time when the unit is on 12v. Pretty
> >good idea. I wonder if I put batteries in it if it would only show the
> >backlight when it has external 12v? Anyone?
> >
> >-- Gnarlie
>
>
>