About this item Electrode Compatibility: designed for mainstream threaded RDE and RRDE electrode heads, supporting flexible configuration for a wide range of electrochemical experiments Precision Speed Control: 32-bit DSP closed-loop system with speed range of 50-9800 rpm and accuracy of ±0.2 rpm per 1000 rpm for stable, reproducible measurements Low-Noise Signal Transmission: silver-carbon brush contact structure with contact resistance below 0.5 Ω ensures stable current collection and reduced electrical noise during high-speed operation External Workstation Control: supports 0-5 V external control signals for integration with electrochemical workstations, enabling automated speed control and synchronized experiments Multi-Function Design: supports 180° rotation, vertical adjustment, horizontal positioning, inverted operation, and spin-coating applications for catalyst preparation and electrode modification Purchase Notice: electrodes are not included and must be purchased separately For quick reference, the manual is available under the User Guide tab.