what specific donut probe/reader do i need to buy

[Gilligan]

That's the part I was saying was high!

This is basically what I have:
http://www.zorotools.com/g/00057029/k-G1100583?utm_source=google_shopping&utm_medium=organic&utm_campaign=Google_Shopping_Feed

[ebscreen]

What you have Gilligan doesn't respond quickly to temp changes, which is necessary for seeing
if a garment is getting a full cure during the time it travels down the conveyor.

It is a good tool for measuring static temp of the dryer though.

[3Deep]

We use a temp gun seems to be doing the trick

[Frog]

Many of us use a non-contact thermometer with usable results, but we know that we are not measuring the bottom of our ink deposits. We have, at best, learned how to translate a surface reading to a relative temperature of the whole layer.

What the Cooper-Atkins Donut does is allow the "cross hairs" to actually be buried at the bottom of the layer of a sample print, and give a truly accurate reading of what has happened to the whole ink layer.

[ZooCity]

Frog summed it up.  I wanted to invest in one of these because we're going from a 20" long chamber with a single IR panel to a 10 foot long one with a heated forced air middle and IR panels at either end.  Figured it would be nice to not only map out what's going on in there but to see what we have for a high/low inside the chamber.  I may not be running the last IR 'bump' panel at all so the IR gun wouldn't be as handy as with a shorter dryer.

We use a raytek raynger right now and it's handy for sure but my ultimate test is washing and drying, there's just nothing as absolute as that. 

[Shanarchy]

For those that are using the donut probe, what peak temperature are you looking for in comparison to the ink manufactures listed curing temperature? For example, manufacturer lists "Cure at 325°F (162°C) over a 60-90 second period". Also, has anyone used theirs to sync their flash times?

[tiredew]

According to the Wilflex How-To guide you're supposed to press the wires into the ink. Is it easy to remove the probe once the ink has cured completely around it?

[alan802]

According to the Wilflex How-To guide you're supposed to press the wires into the ink. Is it easy to remove the probe once the ink has cured completely around it?

Yes, the ink won't be completely around the wires unless you have a very thick deposit of ink which you won't have when doing this type of testing.