I found the temperatures reported by this thermocouple to be completely accurate. It withstood both freezer and oven temperatures (0F to 500F/-18C to 260C) just fine.This isn't super fast to read like a normal thermocouple. It's caused by the thermal mass in the little shield that covers the probe. I don't find this a fault since that's just how this design works, but mention it just in case you need something fast.The cable's braided outer jacket does a good job of protecting the conductors inside. It didn't care about getting closed in the refrigerator or oven door.Overall, it's a good thermocouple probe. It's a little on the spendy side, but quality makes up for it.

I have a Fluke 52ii handheld thermometer. It comes with two Type K thermocouples, one can be used with each channel. After settling, the Fluke original thermocouples read identically, often giving the exact reading or within 0.2 degrees F at room temperature, and within one or two degrees at elevated temperature. The Fluke thermocouples hot junctions are each a bare end to a pair of wires that are exposed at the tip. For my purposes, thermal mass is negligible.This thermocouple comes prepared as an air probe with shielded cable. When testing side-by-side with a Fluke original thermocouple, with one plugged into each channel, it, too gives an exact reading (after settling). I originally thought this probe might lag when temperatures change but with more testing I found this wasn't the case. The shield around the probe end does not seem to hinder prompt change of air temperature, while the integrated clip helps keep the probe where temperature is to be read.So why did I deduct one star from my rating? Shielding is listed as made of 316L stainless steel. 300-series stainless steel is more than its recipe of ingredients, just like flour and water alone do not make a loaf of bread. 300-series stainless steel is non-magnetic because of how its structure is prepared. Unexpectedly, the braided sheath for this thermocouple is attracted to a magnet, and the shield around the probe is much more heavily attracted to a magnet. Both are magnetic enough to lift a magnet that's attracted to them.So are these materials shielding this thermocouple truly stainless steel? It's possible they started out tat way. Through working the bulk stainless steel into wire to make the braid, and to make the tube that surrounds the hot junction at the tip of the thermocouple, it seems the material lost its non-magnetic properties. With this loss comes a loss of corrosion resistance (Imagine: same ingredients, different preparation, different result). This happens with all 300-series stainless steels. Original material properties are restored through annealing. That manufacturing step was skipped here. Since this thermocouple is designed to measure air temperature it's not clear that it will ever be exposed to a high enough temperature to restore the non-magnetic and full anti-corrosion characteristics. One star was removed because the cable's sheath and the tube that surrounds the measuring tip do not have all the qualities that would be expected of Type 316L stainless steel.This probe is inexpensive enough that, should it corrode, it can be replaced. Except for the insulation between conductors within, if this probe is used with care and if it had been made with the materials the vendor claims, this thermocouple should last indefinitely. For manual testing you can keep an eye on it and know when it should be replaced. For a more permanent installation you may have to revisit more often than you may have expected at time of purchase expected.To summarize, temperature measuring ability is as good as Fluke original equipment. Construction of this thermocouple looks good, and this thermocouple can be put to immediate constructive use. An extra annealing step for the stainless steel used in its manufacture was skipped and should have been done to restore full stainless qualities. Unfortunately this step was not done, which will ultimately shorten the useful life of this thermocouple. I hope my experience has been of help to you in your buying decision.