The APEX digital mini scale has a super compact design that makes it ultra-portable and perfect for travel. The clear plastic cover protects the APEX's precision weighing sensor protected while not in use, and also doubles as an expansion tray. Results are easy to read on the green back-lit LCD in any lighting condition. Built-in overload protection helps prevent damage to the pocket scale. Other features include power-saving Auto-Off after 3 minutes of inactivity, Tare/Zero feature for subtracting the weight of a container or expansion tray, and easy one-touch calibration. Includes two AAA batteries. Backed by a Ten Year Limited Warranty. Truweigh: Quality You Can Measure. Features: Max Capacity: 100g / Readability: 0.01g Easy One-Button Calibration Tare/Zero Convert Automatically Between: g, oz, ozt, dwt, ct, gn Built-in Overload Protection Backlit LCD for easy reading Power-Saving Auto-Off (180 sec)