Programmable 4Channel Calibration Module for Precise Multimeter Calibration Key benefits and why you need it Precise calibration for higher accuracy. Designed for half digit multimeters with calibration value reaching up to 6 and a half digits to deliver reliable and repeatable results. Safer, more stable operation. Builtin charging management plus loading and unloading protection helps protect both the module and the instrument under test during use. Easy status monitoring and control. An indicator light provides clear visual feedback; to activate the indicator, press and hold the button for 2 seconds before powering on. Simple connectivity. The module includes a micro charging and discharging interface and a 2mm copper test socket for straightforward insertion and use with a range of multimeters to improve conversion rates. Main features Programmable 4 channel architecture for flexible calibration workflows. Builtin charging management to handle internal power safely and efficiently. Loading and unloading protection to reduce the risk of damage during connection and disconnection. Indicator light for clear operational status; activation requires pressing and holding the button for 2 seconds before powering on. Micro charging and discharging interface for convenient power management. 2mm copper test socket for reliable electrical contact and easy insertion into compatible multimeters. Compact form factor suitable for bench use and field service setups. Compatibility and performance Specifically designed for half digit multimeters, supporting calibration values up to 6 and a half digits to meet demanding measurement requirements. Intended to improve calibration consistency and conversion rates when used with compatible multimeters. Practical applications Calibration bench in an electronics : use the module to verify and adjust multimeter readings during routine service and maintenance. Quality control in production: integrate the module into calibration procedures to ensure measurement instruments meet required accuracy before shipment. Field calibration and equipment verification: portable, easy to connect interface allows technicians to perform onsite checks and recalibration of multimeters. What sets this module apart Combines programmability with safety features such as charging management and load/unload protection. Designed for resolution calibration up to 6 and a half digits while maintaining simple, reliable connections via a 2mm copper test socket. Indicator light and simple activation sequence provide intuitive status feedback without complex setup. Note on use Follow the indicator activation step precisely: press and hold the button for 2 seconds before powering on to enable the indicator. Use compatible half digit multimeters and appropriate test leads for results.