>      Mark, it is a good move to go to thick wall tubes. I'm just
> concerned
>      with the heat expansion between the tubes?
>      I like your fire detector. It was amazing to watch it work at
> Bill's
>      place. How do I get one ? :)
>      Buly
>
>
> Hi Buly,
> I contacted the company I bought the boards from to check on a volume
> purchase and they told me that they could supply more but the price
> would be higher.  They said that the board I purchased was old stock
> left over from a previous run.  It was a robotics supplier, but I don't
> recall the name, but I can look through my files to see if I can locate
> their url.  The "eye" of the unit is called a UVtron sensor.  I think it
> is manufactured by a Japanese firm.  Do a Google search for that and see
> what turns up.  The UVtron sensor is about $50 by itself.  I have it
> hooked up to a big red LED at the top of my panel.  Hope I never see it
> lit up while I'm in the air.
> Mark S
>
> I found it. Here is screen shot.
>   http://www.acroname.com/robotics/parts/R67-UVTRON.html
>
> Paul Lamar
>
>
> Yes, that's the one.  It doesn't give the input voltage, but I think it
> is 5v, so you'll need a voltage regulator.  The PICKAXE suppliers have a
> neat little voltage regulator for $3.50.  I bought two.
>
> Mark S


How do you set this thing up to recognize fire versus a very hot
exhaust system?

best,

George W

George,
At Bill's place Mark had it pointed at a red hot heater and did not
trigger. It is triggered only  by an open flame. It was detecting
[cigarette] lighter from 30' away.
Buly



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