1. Self vent and reseal structure with patented law ensures that vessels will release pressure and instantly reseal when a sudden over-pressurization occurs.

2. Advanced contactless temperature control technology which measures real temperature of solution in each digestion vessel.

3. Can edit and store 255 programs according to user's requirements and each method program can set 10 digestion steps.

4. Multi safety protection functions: high strength double security door, temperature monitoring, high temperature prevention, pressure monitoring.

5. Using variable frequency resonance or non-pulse continuous rotating mode to ensure high efficient and even microwave throughput.