I don't use a thermometer.
Put your thumb and ring finger together, stick your index finger and middle finger straight out, and poke the triangle between your thumb and index finger. When I poke my burnt mammal with a fork, that's what I want it to feel like. Usually works out to medium or medium rare, depending on the thickness.
Chief cook & bottle washer for one kid, a dog, 6 hens, 2 surprise! roosters, two horses, and a random 'herd' of quail.
~The ultimate ignorance is the rejection of something one knows nothing about and refuses to investigate~