Popular analytical balances are designed for weight measurements with very high precision. Those balances have calibration system with internal weight, which assures maintaining of measurements precision during operation without user’s intervention. Spacious, closed with slidable glass on three sides weighing chamber allows for comfortable and efficient operation in rooms, where elimination of air movements is impossible. Illuminated LCD display and standard set of balance keys assure efficient communication with balance in range of measurements and user full set of extended special functions. Wide range of user special functions is helpful during use of often repeated measurement activities. Standard RS232C connector allows for connecting computer or printer to print receipts and reports or weighing results statistical processing.