can this thermometer be placed in the meat and remain in it while cooking for like 10 minutes or so? If not what kind?

This thermometer can be used inside an oven placed in the meat.

I own a analog thermometer with red metal adjustable setting tabs and I was wondering if this thermometer could be left in the turkey while cooking. It says dishwasher safe but can find no info on being safe in the oven.

Yes, this thermometer can be used in an oven.

#1- do you have a receipt for a 7 lb prime rib roast? #2- can I re-calibrate this thermometer?

1. Hi, we don't have room in this answer box to post a recipe for a prime rib roast, but there are many recipes online. If you search "prime rib recipe" in a search engine (like google or yahoo), there are recipes with instructions for different roast sizes. 2. This thermometer cannot be re-calibrated, but you can still do a boiling water temperature test (212 degrees F).

I have a 5939 which has a circle with the letters NEF enclosed, and another one w/o a model #. A few years ago, I bought one because my wife was suspect of the accuracy the one which she had been using. She has passed on and I don't know which was the newer one. They read much differently. I brought water to a boil. Temperatures were vastly diferent. I added a candy thermometer and got a third reading. I inserted an instant-read dial. I then had 4 different readings. What do I do, Coach? I am 87 and have to rely on accuracy.

Hi. The boiling point of water in fahrenheit is 212 degrees, so trust the one that is closest to that reading. If any of your thermometers can be re-calibrated (there would be a hex dial behind the face), you can adjust the dial, or if they cannot be re-calibrated, write down the difference in temperature and keep that in mind for future readings. Sorry, this particular thermometer cannot be calibrated. Thanks!

I have a 5939. It does not seem to be accurate. How can I check it?

Hi. You can do a boiling water test to see how close the reading gets. Water boils at 212 degrees F. Thanks!