The roasting thermometer is your most important tool for the success of your game meat. The internal temperature must not be too high as this risks making the meat too dry and thus spoiling the flavour. We recommend the Meater and Meater+ for this. Both are wireless, come with a very good app and measure both the internal temperature and the temperature around the meat.
The difference between the two is that Meater has a range of 10m while Meater+ has a range of 50m with the help of a repeater.