Fluke 5520A/5500A Multi-Product Calibrator from Fluke Corporation is an economical and efficient calibration instrument that can adapt to changing workloads. It offers a wide range of calibration loads with high accuracy and multiple functions. This calibrator can meet the calibration needs of various instruments, including voltage, current, resistance, capacitance, and power. It features self-diagnostic capabilities and modular design for quick problem-solving. Fluke Corporation provides a complete solution, including calibrators, measurement standards, software, training, and technical support, to meet the diverse needs of users.