Aloha Sheryl,
Given that the beans are inside a drum that can 
be 400 degrees hotter than the actual beans, I 
think that some device that will speak the 
digital readout of the existing thermometers 
would be the easiest way to go since those 
thermometers are already installed in the big roaster.
I wonder if the manufacturer of the roaster could 
be of any assistance in this quest.
At 08:32 PM 9/7/2010, you wrote:
>Aloha everyone,
>I am looking for your great solutions.
>I roast coffee beans in a roasting machine that has a drum made of cast iron.
>The drum can get to around 700 degrees. The beans get to around 400
>degrees plus depending on the darkness you want. The beans touch a
>sensor which tells on a print display what temperature the beans are
>at. It is critical to know the temperature of the beans which is
>vital to the roasting process . I am looking for a talking device
>that could read the digital temperature display or a talking
>thermometer that has a probe that can be put in to the barrel and the
>beans touching the probe will register the temperature of the beans.
>I might like a wireless thermometer if one exists so I can access the
>temperature everywhere in the wear house and do the next steps
>required for completing the roasting process. I suggest that the
>thermometer probe or sensor be able to tolerate temperatures up to
>800 degrees. Look forward to hearing from you.
>Aloha Sheryl

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