Core Insights - The National Institute of Standards and Technology (NIST) has developed a quantum device capable of simultaneously measuring current, resistance, and voltage within a single system, potentially simplifying quantum electrical standards operations and reducing research costs [1][2]. Group 1: Device Functionality - The new "one-box" measurement method allows for the integration of two quantum standards that traditionally required separate devices, which is a significant challenge due to the reliance on fragile quantum phenomena observable only at very low temperatures [1]. - The device utilizes a novel material that enables quantum properties to be achieved without the need for a magnetic field, allowing both quantum systems to operate simultaneously within the same low-temperature refrigerator [1]. Group 2: Measurement Accuracy - The team successfully obtained measurements for amperes, ohms, and volts with an error margin of only one millionth, showcasing the precision of the new device [1]. Group 3: Cost and Accessibility - This device is expected to lower the costs associated with using quantum electrical standards and make it more convenient for researchers worldwide to utilize [2].