1The measurement accuracy is high, it can measure 100g, and the accuracy resolution is 0.001g. 2Scope of application, can be used to measure the weight of medicines, jewelry, coins, etc. 3LED highdefinition display, no matter or night, you can read clearly, long standby time. 4Small, light and exquisite, you can put it in your pocket and use it when you go out. 5Multifunctional electronic scale with functions such as tare weight, counting, unit conversion, switch button and so on. 6ABS and stainless steel material, not easy to fade and deformation. Energy saving, environmental protection and durable, long standby time. Item Type: Mini Scale Material: ABS+Stainless Steel Weight: Approx. 442g / 15.6oz Product Size: Approx. 14x7.7x5.2cm / 5.5x3.0x2.0in Battery Parameters: 2xAAA batteries (not included) Key Description: ON/OFF: Switch machine button PCS: Count key TARE: Tare key MODE: Unit conversion key Unit Conversion Key MODE, press this key to select the weighing unit you need, and there are multiple units for conversion. Conversion Value of Weight Unit: 1ct=0.19997g 1oz=28.3495g 1dwt=1.5552g 1ozt=31.1034g 1gn=0.0648g 1tl=37.4999g Deduction/TARE 1. Turn on reset to zero; 2. Place the deducted object on the weighing pan; Calibration Mode: 1. In shutdown mode, hold down the [TARE] key and then long press the [ON/OFF] key to turn on for 2 seconds to enter the internal code test state, and then short press the [MODE] key to enter the calibration mode. "CAL" is now displayed 2. In the weighing mode, long press the [MODE] key to enter the calibration mode, and "CAL" is displayed at this time 3. Press the tare key (TARE key) to display 0.0 or 0.00, indicating that the weight has been deducted 4. Then put in the item to be weighed, the reading at this time is the net weight of the item Calibration: calibration must have corresponding weights 1 x Jewelry Scale(Battery Not Included) 1 x 100G Weight 1 x Measuring Spoon 1 x Tweezers 1 x Manual 1. Please allow 1& 8209;2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.