It's particularly hard to use the thermometer correctly if your baby is under three months. Her ear canals are likely to be too small. But if your baby is older, here's how to use an ear thermometer: Don't use a strip-type thermometer, which you hold on your baby's forehead, to check your baby's temperature.
For medium rare on a 1 inch top sirloin boneless steak, total cooking time should be about 8 to 10 minutes. For a 2 inch boneless top sirloin total cooking time of about 18 minutes will give medium rare results. Ideally, you should be using a great instant-read meat thermometer.
Place the top sirloin fillet steak on the grill over the hottest part of the grill. Close the top and cook the steak for 2 minutes for rare meat, 3 minutes for medium rare and 4 to 5 minutes for medium. Flip the top sirloin fillet over using a spatula and cook the steak for the same amount of time as the first side.