What you are looking for exists, but is expensive. PP had one suggestion, here is another:
https://www.amazon.com/dp/B0CHRVD5DX/ref=sspa_mw_detail_4?ie=UTF8&psc=1&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9kZXRhaWwp13NParams
I have also seen an instant-read thermometer that has a "display hold" button. You'd still have to open the oven and reach in to poke the meat, but then you could press the hold button, remove the probe, and read the display outside of the oven. If that sounds like you want, let me know and I'll see if I can find that again.
Otherwise, you are looking at a thin cable running from the probe to the display unit. That's what I use, and find that it really doesn't interfere with the oven door.