1. The copper stirrer meets the standard requirements;
2. The glass cylinder is transparent for observation, which is convenient for operation;
3. Digital display speed, adjustable by precision governor;
4. Digital timer controls the stirring time;
5. Microcomputer temperature controller, digital display, accuracy ±0.1℃ PT100 sensor;
6. Stainless steel heater;
7. The stainless steel holder fixes the glass test tube, which is easy to operate.