So easy to use, ready to use right out of the box; when you fill in the probe, it starts to read the temperature; insert the tip into the food, only 2-3 seconds, the large dial will display an accurate and easy-to-read temperature; when finished , Just flip the probe back and the device will automatically turn off the power; a CR2 button battery is required, we provide it, so you have everything you need to start cooking the perfect grilled steak, chicken, pork, fish, lamb or turkey. The lighting is fast and accurate; the reading only takes 2-3 seconds; it is accurate to +/-1 degree and the range is -58-572; no more sweating on the hot grill waiting for the temperature to stabilize; in addition, for your convenience, Our thermometers are pre-calibrated, but if needed, you can easily recalibrate using the simple calibration function Easy to read and waterproof; the large dial with backlight means you can read the temperature at any time, whether you are grilling in the dark or baking in a bright kitchen; waterproof, the food thermometer can be rinsed under running water without worry. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.