... zero tracking 3.Low battery indication 4.LCD/LED display Electronic Platform Scale Product description:With automatic zero tracking, zero, tare, weight, unit ... , zero (start up / manual) range, can be set up;5 digital filtering speed, range and stable time can be set;6 ... 20mA current loop large-screen communication interface; 30-800 kg platform scale is general choose, generally make more than 1 ton to ...