Don't guess when the meat is done, be sure! Extra long sensor tip locks into place at 180° plus 3 other angles. This instant read food thermometer displays temps from -58° up to 572° Fahrenheit on its LED screen in 6 seconds. Easily switches from Fahrenheit to Celsius with toggle on the back. Temperature sensors are located at the tip of the probe, just insert the point halfway into the thickest part of the meat. Approximately 16.5 inches long overall at full 180° extension, comes with with sensor sleeve and adjustable silicone insertion depth gauge which allows consistent placement for more accurate readings. Requires 2 AAA batteries, not included.