Ruth,
  You didn't say if all your batches have come out clear? Pint batches come out 
well for me too, with the same model generator you have. I did get a meter due 
to DW problems and inconsistencies (I just posted in more detail about the DW 
here). I no longer seed my batches of CS, nor do I pre-heat the DW, just use it 
room temp. 
  My 2 cents is that if you aren't having any batches turn unexpectedly yellow, 
you likely don't need the meter. I bought one, because the inconsistencies in 
how my CS was turning out were driving me completely nuts. 
paula
  ----- Original Message ----- 
  From: Ruth Bertella 

  This is all still really new to me, but I have made several different size 
batches of CS with the silverpuppy generator which includes an auto shut off.   
All of my one pint batches have been consistently turning off after about 1 to 
1 1/2 hours.  All of my different size batches had different "cooking" times (I 
always use a "starter" of pre-made CS as suggested in some earlier threads).   
The one batch I made using a 1 quart jar took over 3 hours, so I've decided to 
stick with the pint size.