Labotemp Portable Cryogenic Freezer CRF-203 features a compact Cryo Freezer for laboratory and research applications. It has a 2 L storage capacity, adjustable temperature range from 18°C to -120°C, and ±1°C temperature stability for dependable sample preservation. It provides reliable ultra-low temperature storage for biological specimens, DNA and RNA samples, cell cultures, enzymes, specialty reagents, pharmaceuticals, and other temperature-sensitive laboratory materials. The direct cooling system ensures rapid pull-down and uniform temperature distribution, while the high-precision PT100 temperature sensor continuously monitors chamber conditions for accurate control. Supporting both 100–240 V AC and 12–24 V DC power supplies, the CRF-203 offers flexible operation in research laboratories, biotechnology facilities, pharmaceutical environments, mobile testing units, and cold-chain transportation.
Advanced Stirling Cooling Technology
The CRF-203 utilizes advanced free-piston Stirling cooling technology, where a sealed piston repeatedly compresses and expands helium gas inside the cooling engine to create a continuous refrigeration cycle. As the helium gas expands, it absorbs heat from the storage chamber, and as it compresses, the heat is released outside the system, producing efficient cryogenic cooling without conventional compressor-based refrigeration. With fewer moving parts, this technology delivers lower vibration, quieter operation, reduced maintenance, and outstanding temperature stability for sensitive laboratory samples. Capable of reaching temperatures as low as -120°C, the system provides rapid pull-down performance while consuming only 70 W during steady-state operation at 25°C ambient temperature. Combined with precision temperature control, durable insulation, a lockable lid, and integrated temperature alarms, the CRF-203 offers reliable, energy-efficient cryogenic storage for research, biotechnology, pharmaceutical, and clinical laboratory applications.
Why Choose Labotemp Cryogenic Freezer CRF-203?
✓ -120°C Cryogenic Storage: Provides reliable ultra-low temperature preservation for sensitive biological and pharmaceutical materials.
✓ Free-Piston Stirling Cooling: Delivers compressor-free, low-vibration, and energy-efficient cryogenic refrigeration.
✓ Compact & Portable Design: Lightweight 2 L freezer with AC/DC power compatibility for laboratory and field applications.
| General Specifications | |
| Product Type | Portable Ultra Low Temperature Freezer |
|---|---|
| Storage Volume | 2 L |
| Temperature Range | +18°C to -120°C |
| Cooling Engine | Free Piston Stirling Cooler |
| Refrigerant | Helium (He) |
| Heat Transport System | Direct Cooling |
| Operating Environment | 5°C to 35°C, ≤80% RH, Altitude ≤2000 m |
| Internal Dimensions (L × W × D) | 160 × 160 × 80 mm |
| External Dimensions (L × W × D) | 245 × 246 × 450 mm |
| Net Weight | 11 kg |
| Cooling Performance & Temperature Control | |
| Cooling Performance | 25°C to -120°C in approximately 2 hours |
| Temperature Control Accuracy | Target Temperature ±1°C |
| Temperature Sensor | One RTD (PT100 Class B), Precision ±0.3 |
| Steady-State Energy Consumption | 70 W |
| Noise Level | <55 dB |
| Warm & Cold Alarm | Setpoint ±10°C |
| Defrost Method | Manual |
| Electrical & Construction | |
| Power Supply | 100–240 V AC, 50/60 Hz; 12–24 V DC |
| Maximum Power Consumption | 100 W (0.5 A @ 220 V, 4.6 A @ 24 V) |
| Insulation | High-Performance Polyurethane Foam |
| Packaging Information | |
| Shipping Dimensions (L × W × D) | 390 × 400 × 550 mm |
| Shipping Weight | 16 kg |
Cryogenic Sample Preservation:
Provides ultra-low temperature storage down to -120°C for highly sensitive biological and research specimens.
Biotechnology Research:
Preserves DNA, RNA, proteins, enzymes, stem cells, and other biomaterials requiring cryogenic storage conditions.
Pharmaceutical Research & Development:
Ensures reliable storage of biologics, pharmaceutical compounds, and temperature-sensitive drug formulations.
Clinical & Medical Laboratories:
Maintains the integrity of clinical specimens, diagnostic samples, and research materials during storage.
Vaccine & Biologics Storage:
Supports secure preservation of vaccines, biologics, and immunological products requiring ultra-low temperatures.
Scientific Research Institutes:
Ideal for advanced laboratory research involving cryogenic preservation of valuable experimental samples.
Precision Instrument Cooling:
Provides stable ultra-low temperature environments for cooling sensitive analytical and scientific equipment.
Aerospace & Defense Applications:
Suitable for aerospace research, military testing, and specialized applications utilizing Stirling cooling technology.
Cold Chain Transportation:
Enables portable transportation of high-value temperature-sensitive materials while maintaining an uninterrupted ultra-low temperature environment.
Industrial Low-Temperature Testing:
Supports material testing, electronic component evaluation, and specialized industrial applications requiring temperatures as low as -120°C.
