Features: 1High accuracy it can measure up to 50g with a 0.001g accuracy resolution. 2Can be used to measure the weight of medicine jewelries coins etc. 3LED high-definition display screen whether day or night can clearly read. 4Compact size lightweight and exquisite you can put it in your pocket. 5With the functions of tare counting unit conversion and on off button. 6Made of high quality ABS and stainless steel material which is hard to fade or deform. 7You can install two AAA batteries(noy included) energy saving environmental protection and durability long standby time. Specification: Condition: 100% Brand NewItem Type: Jewelry ScaleMaterial: ABS + Stainless SteelColor: As shown in the pictureSize: Approx.14.5x7.7x5cm/5.7x3x2inWeight: Approx.383g/13.5ozBattery: 2 x AAA battery(Not included)Key Description:ON/OFF: ON/OFF keyPCS: Counting keyTARE: Tare keyMODE: Unit conversion key1. Turn on the power button ON / OFF and wait for three seconds to display 0 or 0.0 or 0.00 or 0.000.2. Place the desired scale on the weighing pan and read the value after the value is stable.3. Press the unit conversion key to change the weighing unit.4. Press the power button to turn off the computer when it is turned on.Unit conversion key (MODE): Press this key to select the weight unit you need there are a variety of units for conversion.1ct / carat = 0.19997g 1oz / ounce = 28.3495g1dwt = 1.5552g 1ozt / troy ounce = 31.1034g1gn / grain = 0.0648g 1tl = 37.4999gTare / peel (TARE):1. Turn on the machine to 0.2. Place the deduction weight on the weighing pan.3. Press the tare key (TARE key or T key) to display 0.0 or 0.00 indicating that the weight has been deducted.4. Then put the item to be weighed and the reading at this time is the net weight of the item.Calibration: Calibration must have corresponding weightCalibration mode:1. In shutdown mode hold down the [TARE] or [T] key and then long press the [ON / OFF] key to boot for 2 seconds to enter the internal code test state then press [MODE] or [UNIT] M key to enter calibration mode. CAL is displayed2. In weighing mode long press MODE or UNIT or M key to enter calibration mode at this time it displays CALCalibration Method:After entering the calibration mode and displaying CAL in one of the above two modes press the [MODE] or [UNIT] or [M] key again the word CAL will be displayed and it will flash a few times and display the calibration weight. Put the weight of the corresponding weight on the weighing pan stabilize it for 3 ~ 4 seconds and then complete the weight calibration. After displaying PASS press the [ON / OFF] key to shut down and complete the calibration.Calibration method of electronic measuring spoon:Calibration mode:In the shutdown mode press the TARE button to turn on the power and then immediately release the other two buttons (MODE / HOLD button) after releasing. When a string of numbers is displayed. Then let go. Press the MODE button once.1. Take 300g / 0.1g as an example (requires secondary correction) and then display 150g characters. Then put on a 150g weight. Wait for the number to display 300g. Then put on the 300g weight. After the screen displays PASS long press the TARE key to shut down and then take off the weight. Turn on the machine and put on the weight check the accuracy of the calibration scale.2. Take 500g / 0.1g as an example (requires secondary correction) and then display 200g characters. Then put on a 200g weight. The number will then display 500g. Then put on the 500g weight after the screen shows PASS long press the TARE key to shut down and then remove the weight. Turn on the machine and put on the weight check the accuracy of the calibration scale.Counting Function (Limited to some products only):In the normal weighing state place a certain number of samples (the system presets 25 50 75 100 sample numbers for selection) on the weighing pan hold down the PCS key without letting go 2 seconds After the clock the display shows the number of samples and then release the PCS key press the MODE key (or M key UNITS key) to switch the number of different samples after selection press the PCS key to confirm the sample The quantity is entered into the counting state; if you need to change the sample quantity you can reset it according to the above steps; press the MODE key (or M key UNITS key) in the counting state the system will exit the counting state Return to normal weighing status and display weight value. Package List: 1 x Jewelry Scale1 x 50g Weight1 x Measuring Spoon1 x Tweezer1 x Instruction Manual Note: 1. The maximum weight of this product should not exceed its maximum range + 2%.2. Overload will permanently damage the product.3. The product cannot be exposed to extremely cold or extremely hot environments. The product can work well in normal environments. Please allow the product to adapt to a new environment for at least one hour before use.