High Accuracy Voltage Reference Module For HP3458A Multimeter And Equipment

<br> <b>Features:</b><br> The K4212H579 programmable 4 channel voltages calibration module integrates charging management and load/unloads functions, delivering six digit precisions for HP3458A multimeter calibration with built in reference voltages source.<br> Featuring four preset outputs (10V/7.5V/5V/2.5V), double color LED indicators, and USB port with 2mm copper test sockets for seamless connectivity to measurement instruments.<br> Designed for electronics engineers and calibration technicians requiring high accuracy voltages references in laboratory environments or precisions equipment maintenance scenarios.<br> Ideal for verifying multimeter accuracy in labs, manufacturing quality controls stations, or field service operations where stable voltages benchmarks are critical.<br> Its compact PCB design with instantly start functionality (hold power button for 2s) ensures rapid deployment across diverse calibration workflows while maintaining measurement consistency.<br> <br> <b>Specifications:</b><br> Component: PCB<br> Battery: 1piece 3.7V 14250 Battery (battery not included)<br> Charging and Discharge Interfaces: USB<br> voltages: DC5V<br> Output interfaces: 2mm banana plug<br> Notes:The reference voltages does not need to be filled every 2 months. The development board has built-in charging management and discharge functions. Do not connection the battery polarity reversely.<br> <br> <b>Note:</b><br> Please allow 1mm errors due to manual measurement. <br> Due to the differences between different monitors, the picture may not reflect the actual color of the item.<br> <br> <b>Package includes:</b><br> 1Piece voltages Reference Module

• The K4212H579 programmable 4 channel voltages calibration module integrates charging management and load/unloads functions, delivering six digit precisions for HP3458A multimeter calibration with built in reference voltages source.
• Featuring four preset outputs (10V/7.5V/5V/2.5V), double color LED indicators, and USB port with 2mm copper test sockets for seamless connectivity to measurement instruments.
• Designed for electronics engineers and calibration technicians requiring high accuracy voltages references in laboratory environments or precisions equipment maintenance scenarios.
• Ideal for verifying multimeter accuracy in labs, manufacturing quality controls stations, or field service operations where stable voltages benchmarks are critical.
• Its compact PCB design with instantly start functionality (hold power button for 2s) ensures rapid deployment across diverse calibration workflows while maintaining measurement consistency.