1. Fully automatic program freezing: Once started, the entire freezing process is completed automatically without human intervention.
2. Imported touch screen.
3. Built-in imported PLC control system: no computer connection required. Real-time calculation and conversion: Based on the actual temperature, a new conversion result is generated every 7 seconds, and the latest instructions are sent to ensure temperature accuracy and minimize temperature errors.
4. Imported temperature probe with high sensitivity and real-time temperature display.
5. 360-degree air outlet design in the freezing chamber ensures consistent temperature at all locations in the freezing chamber, ensuring consistent freezing results for specimens frozen in different areas.
6. Turbine fan in the freezing chamber ensures rapid, uniform, and error-free freezing of the freezing chamber temperature.
7. Quick program setup with no quantity restrictions, meeting the freezing requirements of semen from different animals and species.
8. Three sizes available: 750, 2100, or 4800 straws can be frozen at a time, and the size can be customized based on actual needs.
9. Self-pressurized liquid nitrogen tanks with various capacities are available. 
10. Programmable cooling based on sperm freezing temperature requirements, eliminating the need for a cooling equilibration chamber. After placing the packed straws in the freezer, the entire freezing process takes just 125 minutes.
11. Temperature control range: 70°C to -160°C.
12. Customizable freezing programs: The freezing program can be easily configured with temperature, time, and cooling rate.
13. Simple control: Simply start and stop the freezing process on the touchscreen, making it easy to use for both experienced and inexperienced users.
14. Real-time temperature logging: Each freezing process temperature is recorded in a historical curve for easy review and evaluation.
15. Alarm notification upon completion of freezing.