1. Common Type: Stepless speed adjustment is applicable to working scenarios where the demand for oscillation speed is not high.
2. Speed-Measuring Type: Stepless speed adjustment, with rotational speed displayable. Both rotational speed and time are controlled by knobs.
3. Constant-Speed Type: Precise speed control. Once the speed value is set, it operates at a constant speed without fluctuations, suiting experimental working scenarios with high speed requirements.
4. Stainless Steel Spring Clamp: Stretchable and applicable to containers of various capacities. It can be used for the cultivation and preparation of biological samples in multiple comparative experiments.
5. Brush Copper Core Motor: Capable of high-speed oscillation without stress, able to drive heavy items, and can operate continuously for an extended period.
6. Product Application: Suitable for the oscillation of liquids and powders.

Working Environment Conditions:
1. Temperature Range: 10°C - 40°C. The temperature should be stable and avoid significant fluctuations.
2. Humidity Range: 30% - 80%. Excessive humidity that may cause dampness or too low humidity that may lead to brittleness of components should be avoided.
4. Environmental Cleanliness: Maintain the cleanliness of the laboratory, and clean the equipment regularly to prevent dust accumulation.
5. Ventilation Requirements: Adequate ventilation is necessary while avoiding direct strong wind blowing onto the equipment.
6. Vibration and Shock Requirements: Place on a firm and level workbench, and avoid vibration sources and intense shocks.
7. Electromagnetic Interference Requirements: Strong electromagnetic fields should be avoided. Shielding measures should be adopted when necessary.

Precautions:
1. Inspect the Equipment: Ensure all components of the instrument are in normal condition, screws are fastened, and the power cord is intact.
2. Place Steadily: Position it on a flat surface in a clean and well-ventilated environment, and ensure good grounding.
3. Standardized Operation: After connecting the power supply, start at a low speed.
4. Safety Protection: Wear gloves and goggles. Moving the machine is strictly prohibited, and avoid object impacts.
5. Fixture fixation: Test tubes and other containers must be fixed in the fixture. Movement is strictly prohibited during operation.
6. Control the Speed: Adjust the speed and amplitude based on the experimental requirements to avoid solution overflow.
7. Clean the Equipment: Wipe it clean after use and keep it clean and dry.
8. Regular Inspection: Inspect the components regularly and repair any abnormalities promptly.
9. Appropriate Storage: When not in use for an extended period, cut off the power and store it in a dry environment free of corrosive gases.