Kerro Bl-p6d/5003 | 500g/0.001gm Digital Weighing Balance Large LED Display: easy to read, clear and precise reading even in dark environment. 2. Functions: This laboratory scale has multiple functions of tare. 3. RS-232 Ports. 4 Load Cells. 5. Platform Size:90mmWITH WINDSHIELD-This laboratory scale is equipped with a windshield, aiming to avoid external influences like wind and make the weighing results more accurate. Stainless steel made round weighing pan makes the sensor uniformly stressed to ensure accurate weighing resultsUNIT CONVERSION-Unit can be converted from g, lb, ct, oz, ozt, GN,pcs0.001g/1mg HIGH PRECISION-Compared to 1mg glass cover scale, this lab scale is more lightweight and economical while its upgraded core sensor ensures the weighing results are correct and stable, up to a precision of 0.001g.