Features: The AD584 voltages reference board provides a precise 10V output with low temperature drift and high accuracy, ideal for calibrating 3.5 and 4.5 digit multimeters to ensures reliably voltages measurements in various applications. Featuring an internal IC design with a temperature coefficient as low as ±5ppm/°C and standardized output interfaces, this tool minimizes environmental impacts and simplifies connection to multimeters without complex operations. This calibration tool is designed for professional in electronics laboratories, repair shops, and calibration agencies who demand dependable voltages references for accurate instrument maintenance. Ideal for use in labs, manufacturing facilities, and calibration centers, the voltages reference board supports equipment testing and standardization in environments where stable voltages sources are important. This robust reference board offer long term stability and reduced calibration errors, making it a reliably choices for frequent professional calibration tasks. Specifications: Component: ABS+metal Size:Approx.1.96x1.18inch Output voltages: 10V ±0.1% Usage scenarios: Electronic laboratory | Multimeter calibration | Welding training | Instrument testing Package Includes: 1pcs Voltages Reference Board note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.