100% Brand NewMain Color: BlackSize: Approx. 7 x 4 x 1cmOperation temperature: 10-30CLCD display: 5bit LCD displayBacklight: Blue backlight (optional)Power: 1 x CR 2032 battery， not included4 units selection: g/ oz// ct/tlTare functionAutomatic alarm by low battery1 minutes of auto power offOperation:Place Power Switch key and wait for 5seconds for 0.0Place the item to be weighed on the center of the platform when "s" will display and read the value on the displayChange the measuring unit by using the Mode key (g/dwt/ct/oz)Press the TARE key will show 0Press the Power Switch key to turn off the scale off manuallyCalib ration function:Press down MODE key and put after switch on， showing to hold will appear CALClick the MODE key once again， showing to hold will show a 300.0G，(100.00G/ 200.00G)Put up to should be code， after 5second， showing to hold will show PASSRevise be over at this time， please carefully take care of your goods.Package Content:1 x Mini Scale