DescriptionNew， high qualitySmall， lightweight， portableAccurate to 0.1gBlue LCD screen， easy reading， also for use in the darkautomatic calibrationTara reset to zero at any timeAutomatic shutdown， energy savingCapacity: 500gAccuracy: 0.1gAccuracy professional level， I reset to zeroUnit: g， dwt， ct， gnautomatic shutdownPower supply: 1.5V * 2AAA battery (not included!)Size: 98 * 66 * 20mmFAQ: If the readings are inaccurate when used， requires calibration， the specific operation: first start after zero， holding down the key conversion units (key M)， CAL， press the key again M and so the weight value appears， add the corresponding weight， if the weight value appears unchanged since calibration succeeds.package contains1X digital Scales