The taste or "doneness" of meats can be determined to be rare medium medium well or well done based on the type of food and the internal temperature reached during cooking. The new RediCheck remote features a transmitter that reads the internal food temperature with a digital electronic food probe then sends that information wirelessly up to 100 ft away freeing you from standing next to the oven or grill during the cooking period. When the desired temperature is reached an alarm goes off.Place the transmitter near the oven or grill. Insert the tip of the food probe into the center of the food being cooked and run the probe's lead wire out through the door connecting the transmitter. The wire is flexible metal sheath and is rated for over 500 F and isn't hurt by closing the grill door. The transmitter then reads the internal food temperature and sends a signal to the receiver up to 100 ft away.The receiver measures 4.375L x 2.375W x 1H inches weighs 3.7 oz and includes 2 AA batteries.Display featuresA: Meats (choose from six: beef turkey pork veal lamb or chicken)B:Taste or "doneness" (rare medium medium well well done) as appropriate to each meat or you can choose your own target set temperature up to 410 F (210 C) and in your choice of F or CC: Actual internal food temperatureD: Elapsed cooking timer (alternates digits with "meat" by pressing the MODE button)The transmitter measures 3.5L x 2.375W x .75H inches weighs 2.8 oz and includes 2 AA batteries. Signal is sent on 433.92 MZ. Transmitter features a display of actual internal food temperature and a red LED indicating transmissions (which occur whenever temperature changes by 1/2 degree). Probes are stainless steel with flexible braid stainless steel sheathed connecting wire 40 inches in overall length.