An analytical balance is a highly sensitive laboratory instrument used to measure mass with great precision. It typically has a readability of 0.0001 grams (or 0.1 milligrams) and is designed to minimize the effects of environmental factors, such as air currents and vibrations. This makes it ideal for weighing small samples in scientific research and quality control. These balances often feature a draft shield to protect the sample from air movement and a digital display for easy reading of measurements. They are commonly used in fields like chemistry, biology, and pharmaceuticals, where accurate mass measurements are crucial for experiments and formulations.