Calibration for multimeters: Achieve accurate voltage measurements with this resistor reference board, featuring 0.1% tolerance chip resistors and 25 PPM stability, ideal for laboratory and industrial instruments. Quality components and construction: Built with Japanese capacitors including CBB, polyester, monolithic, and ELNA electrolytic types, all mounted on a durable blue plastic board sized 50 mm x 35 mm. Compatibility with reference circuits: Designed for use with AD584 and LM399 voltage reference modules, providing reliable heating and stable output for multimeter calibration and testing applications. Compact and portable design: Measuring 50 mm x 35 mm, this lightweight board is easy to integrate into your workspace or carry for onsite calibration needs across various measurement equipment. Use scenarios On the bench in a metrology lab to calibrate bench and handheld multimeters using standard voltage references. In the field to calibrate portable meters and other measurement equipment onsite, ensuring consistent performance. In R&D or educational settings to validate reference circuits and verify stability and accuracy of voltage references during development and testing.