Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is it necessary to open the oven door to read thermometer?
Document: I didn't get along before without knowing what the food temperature was. Saves those mistaken assumptions. Does take a few seconds to settle. Wait a second or two. Used it to determine refrigerator  temperature setting. Tricky because reading rises after you open door and read thermometer. Be quick
As advertised and reviewed, this thermometer is very fast. Mine takes about 3-5 seconds to read ~150*. The other Taylor model I have takes about 10 seconds which is uncomfortably long when trying to take the temp of a chunk of meat in the oven, bbq or smoker. Accuracy appears to be very good. The probe is very thin which is nice when piercing meat too.
This instant-read digital thermometer works well. It's very fast. The probe is thinner than most. The only thing you may want to know is, the on-off button is small (and I have tiny hands). The button needs to be pressed "just right" so I would suggest turning it on before inserting the probe, otherwise it can be very awkward trying to push the button at a weird angle while your hands are in a hot oven.
Just like the title of the post says: very fast and very accurate. The screen facing up is great too. That day I don't have to stick my head in the oven or grill to read it. Great value.
I bought two: one for home and one for my mother-in-law's kitchen. They have worked perfectly for several months now. I check the calibration once in a while by dipping in ice water and in boiling water, and they read within 2 degrees every time. I got this model instead of Thermoworks' slightly cheaper one because this one can be manually calibrated, but I haven't needed to yet.I use it in grilling and for meat in the oven.
This is a great little oven thermometer--gives you a clear reading in just a few seconds, is small enough to stick in a drawer, looks durable, and comes with a sheath to protect during storage.
I am so happy I bought this thermometer, I hopefully won't be burning anything in the oven or grill in the future. Very reliable but like others it is very tricky putting thermometer back in case, BE CAREFUL!
Using an old school food thermometer takes so long your food cools off or your oven cools down before you can get a true reading. This is fast, fast, fast and accurate. At long last I can cook chicken, steak, and roasts perfectly. I couldn't get by without it now and I'm thinking about buying it for all my family and friends!
I just don't do 5 stars out of general principle, but to do so, the item would have to exceed claims. As always Thermoworks products fully meet their claims. I particularly liked the ability to finely calibrate this device using ice water and boiling water. It is dependable and accurate. Just be sure you don't treat it like an old fashioned meat thermometer and forget it in the oven. If you do...
I bought the RT301WA about a year and a half ago and have generally been extremely happy with it. It gives very fast and accurate readings, just as promised. Works great for determining how much longer my bread needs to bake until the crumb is just right. And I also like it for quickly checking meat in a few different spots.The only caveat is that it can't fully replace a conventional roasting thermometer as it is not intended to be left in the oven while roasting.
Answer: This thermometer must NOT BE PUT IN THE OVEN! It is an instant read and not intended to be used like the old fashioned thermometers stuck in the meat and left there. You will destroy the thermometer if you leave it in the oven.