Product review (4 stars): Bosch Oven Compatible Temperature Probe, Inexpensive but may not be reliable
July 23rd 2016:
Purchased two of these as a replacement and spare for our Bosch oven on June 7th, 2016.

So far, the first of two probes has failed. It is not recognized by the oven. Total exposure to oven temperatures less than 425F is under two hours.

The original, expensive Bosch probe continued to work for some time after its plastic (siliconized or whatever) cover started to fall apart, roughly one year of heavy use baking and roasting.

I will knock two more stars if the second probe fails in less than one year of normal use. If the second of two lasts more than a year, I'll add at least a star later.

Update:
A dozen or so uses later, this still works. Temperatures were under 420F, generally in the 350-375 range for periods of 15-45 minutes. So far, accurate and functional. No offer to replace the one that failed early. Will update this later. Let's see if this probe makes it a year!

Update May 6th 2017:
Many uses on the second of two probes so far, all under 475F, mostly in the 225F to 400F. Insulation on probe is getting less pliable, probe reads a tad slower than it did when new. Second probe still functions. We'll see if the probe makes it a year.

Update Jun 15th 2017
Considering that there was a 50% failure rate, the review should be 2.5 stars or less, however the OEM Bosch probes cost twice as much. I'm upgrading the rating to four stars instead of the three assigned previously because one probe still functions. One of the two probes purchased has made it a full 36 uses at temperatures up to 425 degrees, typically temperatures between 350 and 400.

Update November 8th 2017

65 uses on the second probe. Have to twist it to make it work, but then it stops working shortly after. Although we never mishandled it or pulled on it by the wire, it is breaking up on the inside. Temperatures have generally been 400F or under. This is not a good value - two probes lasted about 100 uses. If you regularly cook roasts, fish and chickens in your Bosch oven, you know how great the result is when the temperature probe works. I'd knock a star for value, but since the two probes did help produce many fine meals, we'll keep it at a four.

For occasional or novelty use, most people would simply have this probe in the drawer unused - an accessory for selling the house. I'll keep looking for something better.

Since two out of two probes died, this ends my long-term review.