Be warned... I did order this from VWR International, a Control Company distributor... and I got the fiberglass (they say PVC) type k probe... after a long backorder.
After a conference call with VWR and Control Company (VWR set it up, it was handy) I was told that the probe wasn't supposed to come with the Teflon sheathing. They did say they were sending me one.. but, be forewarned, you're not going to get the probe with Teflon if you order from any of their suppliers! In fact, control company's web page now shows this:
Thermometers - NIST Traceable® Pocket-Size Thermometer °F/°C Control Company 4232
note the striped cable, not the teflon one.
It wasn't always like that, they must have switched it.
VWR shows this:
VWR.COM - Product Page
clearly the blue, teflon cable there. So does Cole Palmer
Anyhow, beware. The teflon probe is about as expensive as the thermometer unit, if bought separately...