Compact laboratory balances of ATA series are small sized high precision scales. ATA series balances have calibration system with internal weight, which assures maintaining of measurements precision during exploitation. ATA series are designed to use in laboratories, pharmacies, jewellery stores and other places, where high measurement precision is required. Transparent draft shield with cover (option) allows operation in rooms, where elimination of air movements is impossible. Big, backlighted display and functional keyboard allows easy and effective working with the scale. All the scales have a rich set of special functions: counting of identical pieces, calculation of mass changes in percentage, recipe making, change of measurement unit (ct, lb, oz, ozt, gr, dwt), summing measurement series and others. RS232C and USB connector allows connecting a computer or printer to print receipts, reports or archiving weighing results in computer.