HED Certified Digital Scale 1000g x 0.1g Jewelry Pocket Gram Gold Silver

1. High-precision sensor 2.Standard 1000 G weight auto calibration 3.Auto zero and auto off (after 60 seconds of inactivity) function 4.Full tare capacity  5.Bright-blue back light LCD display 6.Low battery and overload indication 7.Flip-up hard plastic cover protects the scale when not in use 8.Weighing modes: g/oz/gn/ct; g/oz/ozt/dwt; 9.Operation temperature: 10-30℃ (optimum) 10.Power supply: 2 x AAA Batteries (Not included) 11.Product dimensions: 128(L) x 78(W) x 19(H)mm 5 1/3" X 3 5/64" X 3/4" 12.Color: black & silver Calibration: 1. Find an item That weighs 100 g, You can fill a plastic bottle with sand, put it on the scale fill it up till it reaches 100g ( This is for the future in case your scale needs calibration however once you get the scale from us that means it's calibrated and ready to go so it won't need calibration) 2-Must be on a flat surface before you start the calibration process. 3-Full calibration instructions are written on the scale 4- Scale is shipped calibrated meaning it won't need calibration, this is only for future use so make sure you get 100g weight or fill a bottle with sand or get an item that weighs 100 grams and store it somewhere till the day comes and the scale needs calibration, I personally owned one of these scales for 3 years and it still doesn't need calibration.