Come and see our amazing products. This item is made of ABS and stainless probe. Celsius and Fahrenheit free conversion. Press the hold button to lock the temperature and press again to release. Suitable for testing water temperature, food, liquid, paste, oil temperature, milk temperature, tea, soup, beer, etc. It doesn't include AG13 button battery. If you need it, welcome to inquiry. Pls confirm further with us if any query about packing info, inventory status and time schedule.