CDN IRXL220 - ProAccurate Large Dial Cooking Thermometer - Insta-Read, NSF Certified

What tools are required to recalibrate the thermometer? (hex wrench, pliers, screwdriver)

can this thermometer be left in an oven during the cooking of a roast

Am I going to have to recalibrate this a lot due to the fact that CDN stuck the tool to do so at the end of the sleeve instead of side? I have kids.

can i just put this in my turkey without doing anything else? never did calibrations and don't understand. can i just put in bird before i cook it?