Features: With its fine 0.001g legibility and relatively large 30g capacity, this scale is ideal for weighing precious metals, stones, herb/medication, and reloading. LCD display with backup light Tare weighing function Over-load indicator Auto power off Quality built construction Powered by either AAA batteries (NOT included) or power cord DC 3.6V-6V/250mA (NOT included).Specifications: Dimensions: Approx. 94 x 31 x 136mm / 3.7" x 1.22" x 5.35" Color: Black Capacity: 30g/150ct/462.98gn Accuracy: 0.001g/0.005ct/0.02gn Units: g/ct/gn Starting Weight: 0.005g (5mg) Tare Range: Tare full capacity Display: LCD with back-light Power: 4*AAA(not included)Package Included: 1x Digital scale 1x User's manual 1x Removable tray 1x Calibration weight