Item Type: Jewelry Scale Min Capacity: 0.005g Accuracy: 0.001 Weighing Error: ≤0.003 Unit Switch: g / gn / oz / ozt / dwt / ct Calibrating-weight: 20g Back-light: Blue Operating Temperature: 10℃-30℃ Power Control: Auto power off after 3 minutes without operation (set up) Power Supply: 2 * 1.5V AAA Batteries (Not included) Low Voltage Display: LO_ Overload Display: O_Ld Material: plastic colour: black Package Contents: 1 x jewelry Scale Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.