American Weigh Scale SM-500 digital pocket scale. You'll never have to worry about your coffee to water ratio again with this handy little barista approved pocket scale. The digital screen is backlit and easy to read, and the scale is accurate to 1/10th of a gram. 500 g capacity. 2 AAA batteries are included. Protected cover doubles as a tray. Stainless steel weighing surface. 10-year limited warranty.