Feature:1. High Accuracy: This resistance reference plate replaccement is constructed with exquisite electronic components, which has high accuracy, good stability and is very practical.2. Easy Operation: This resistor capacitor board is very easy to operate, you just need to align the positive and negative terminals with the corresponding capacitor to obtain accurate readings for calibrating for Ad584 LM399 multimeters.3. Excellent PCB Material: This resistance reference plate is made of excellent PCB material, which is sturdy and rugged, not easy to be damaged and high temperature resistant.4. Good Compatibility: This resistance capacitance board has good compatibility and is suitable for calibrating for Ad584 LM399 multimeters, ensuring accurate readings, very practical.5. Wide Application: This resistor standard board has a wide range of applications, which can be used for calibrating measuring instruments, electronics production, teaching experiments, automated test systems and so on.Specification:Item Type: Resistor Reference BoardMaterial: PCBSize: Approx. 50 x 35mm or 1.97 x 1.38inApplication: Calibrating Multimeters for Ad584 LM399.Package List:1 x Resistance Reference BoardNote:The numbers written on the board may vary due to different production batches, which does not affect the use.