Digital Analytical Lab Balances in Pharmaceutical Research Sensitivity: Analytical balances are highly sensitive and can measure weights with a resolution of up to 0.1 milligram (0.0001 grams). This level of sensitivity allows for precise measurements even with small samples. Enclosed Chamber: Analytical balances typically have an enclosed weighing chamber with glass or acrylic doors. This chamber protects the weighing pan and sample from air currents, dust, and other external factors that could affect the accuracy of measurements.