Thermo Scientific™ TDE Series Ultra-Low Freezer – 24.1 cu. ft., 5 Doors, Manual Defrost

The Thermo Scientific™ TDE50040FA Ultra-Low Freezer provides dependable, high-capacity storage for laboratory environments requiring stable low-temperature preservation. With a 24.1 cu. ft. interior and a –10°C to –40°C operating range, it supports long-term storage of sensitive samples, reagents, and research materials. Four inner doors allow selective access to minimize temperature loss, while the manual defrost system ensures consistent temperature uniformity. Ergonomic enhancements—such as an easy-grip handle, high-contrast eye-level display, and accessible shelf positions—improve daily convenience. Security features include adjustable alarms and padlock-compatible doors for controlled sample protection. Using natural hydrocarbon refrigerants, the system operates with reduced mechanical stress, promoting reliable performance and long-term sample integrity.

✅ Key Features

• ✔️ –10°C to –40°C ultra-low temperature performance
  
• ✔️ 24.1 cu. ft. capacity for high-volume laboratory storage
  
• ✔️ Four inner doors reduce ambient exposure during access
  
• ✔️ Manual defrost for stable, uniform temperature control
  
• ✔️ Ergonomic handle and high-contrast eye-level display
  
• ✔️ Easily accessible shelf locations for user convenience
  
• ✔️ Alarm settings for enhanced sample protection
  
• ✔️ Padlock-compatible outer door for added security
  
• ✔️ Natural hydrocarbon refrigerants for improved reliability
  
• ✔️ Reduced system stress for long-term performance stability
  
• ✔️ Heavy-duty construction designed for research environments
  
• ✔️ Ideal for biological materials, reagents, and long-term preservation

📊 Technical Specifications

⚠️ Safety Notice

Install the freezer on a level, stable surface with adequate ventilation. Minimize door openings to maintain uniform –10°C to –40°C performance. Manual defrost must be performed routinely to prevent frost buildup and support consistent temperature uniformity. Verify alarm functionality regularly, and use padlock-compatible doors when sample security is required. Disconnect power before cleaning or servicing. Use only for appropriate laboratory materials and follow institutional safety guidelines.