HOW TO CALIBRATE A DIGITAL SCALE Although most digital scales are calibrated before shipping, due to different gravity in different part of the globe, a from-time-to-time calibration will keep your scale always accurate. In the status of OFF, hold both TARE key and MODE key and press ON/OFF button and release all buttons when the screen shows CAL. Hereinafter the screen will show a ne... https://www.xn--6w2bt3gq0r9td.com/