A Liquid Handler is a laboratory instrument designed to automate the process of transferring liquids. It is commonly used in fields like biology, chemistry, and pharmaceuticals to improve accuracy and efficiency in experiments. By using precise pipetting techniques, liquid handlers can dispense small volumes of liquids, reducing the risk of human error and increasing reproducibility in research. These devices can be programmed to perform various tasks, such as mixing, diluting, and transferring samples between different containers. Many liquid handlers are compatible with other laboratory equipment, such as robotic arms and microplate readers, making them essential tools in high-throughput screening and sample preparation.