Weighs in grams, ounces, troy ounces, pennyweight and carats. Also has parts counting. Touch screen display makes this a very easy scale to use. Has a flip-top raft shield. Comes with a 10 gram calibration weigh, a removable flat round tray for holding items to be weighed and a scoop tray. Uses 4 AAA batteries which are supplied. Precise to 0.001 grams. Very High Precision Diamond Scale