Mini Digital Scale 50g x 0.001g Jewelry Gold Silver Coin Gram Pocket Herb Grain Product Feature: First Use: When you are ready to start weighing on your Smart Weigh scale, first make sure it is on a hard-flat surface to ensure an accurate reading. This scale comes with batteries included, so place these in the scale and get weighing. Using the "TARE" Function: If you need to weigh an object that can only be weighed in a container, such as a liquid or powder, the "TARE" function is extremely helpful. Simply place the container on the platform, press and hold the "TARE" button, and then place whatever you are weighing into the container. This will help take the guesswork out of weighing objects that are not as easily weighed. Enabling/Disabling the Auto-Off Function: This scale comes equipped with an auto-off function. After 60 seconds of inactivity, the scale will automatically shut off. There is an option to shut off this feature which is convenient when weighing items that are fine and require extremely precise measurement. You can now take your time when measuring all of your items. PCS Function: This scale also comes with a piece counting function. Simply change the mode, place a sample amount on the scale platform, and then add products. The scale will count the number of items on the scale for you! This function is great for anyone who has to count tedious items, such as medications or coins. Product Specification: Type: Digital Milligram Scale Power Type: 2 x AAA Batteries (Not Included) Accuracy:  10g/0.001g,20g/0.001g,50g/0.001g,100g/0.001g Package Included: 1 x Smart Weigh High Precision Digital Milligram Scale 1 x Weighing Trays 1 x Tweezers 1 x Gram Calibration Weights