Vaccine freezer CRF-203

laboratoryfor clinical laboratoriesfor sample storage

Product overview
Labotemp Portable Cryogenic Freezer CRF-203 is a compact 2 L ultra-low temperature freezer engineered for laboratory, clinical and pharmaceutical use. The unit provides an adjustable temperature range from +18°C to -120°C with target stability of ±1°C, offering reliable cryogenic storage for biological specimens, DNA/RNA, cell cultures, enzymes, vaccines and other high-value temperature-sensitive materials. Dual-power compatibility (AC 100–240 V and DC 12–24 V) enables bench-top, mobile or cold-chain transport applications.

Features

• Free-piston Stirling cooling engine delivering compressor-free, low-vibration ultra-low temperature performance.
• Rapid pull-down to target temperatures down to -120°C for time-sensitive sample processing.
• Compact 2 L internal volume suitable for small-batch and high-value sample storage.
• Direct cooling architecture for fast and uniform temperature distribution.
• Integrated PT100 (RTD) temperature sensor and control with alarm setpoint and lockable lid for sample protection and traceability.
• Operates with natural helium refrigerant (He) for environmentally friendly operation.
• Low acoustic profile (<55 dB) and reduced maintenance due to fewer moving parts.
• High-performance polyurethane foam insulation to minimize thermal loss during operation and transport.
• Supports AC (100–240 V, 50/60 Hz) and DC (12–24 V) for laboratory and mobile cold-chain use.

Applications

• Cryogenic preservation of clinical and research specimens requiring ultra-low temperatures.
• Biotechnology and molecular biology: storage of DNA, RNA, proteins, enzymes and cell lines.
• Pharmaceutical R&D and stability testing for biologics and temperature-sensitive formulations.
• Clinical diagnostic laboratories for secure sample custody and transport.
• Vaccine storage and mobile immunization units requiring reliable ULT conditions.
• Research institutes, instrument cooling and specialized low-temperature testing.
• Cold-chain transport of high-value, temperature-sensitive materials.

Technical 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: 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
• 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
• Shipping Dimensions (L × W × D): 390 × 400 × 550 mm
• Shipping Weight: 16 kg