Healthcare facility refrigerator PHR-23

for pharmaciesfor vaccinesfor hospitals

Product overview
Labotemp 2°C to 8°C Portable Pharmacy Refrigerator PHR-23 provides controlled cold storage for vaccines, insulin, pharmaceuticals, biological reagents, diagnostic kits and other temperature-sensitive medical products. The compact 25 L unit maintains a precise 2°C–8°C range with ±1°C stability and supports AC/DC operation for use in clinics, hospitals, pharmacies, ambulances and mobile/field healthcare applications.

Advanced Stirling Cooling Technology
The PHR-23 uses a free-piston Stirling cooling engine with sealed helium as the working fluid. Heat is removed through a gravity-driven thermosiphon without a conventional compressor, resulting in low vibration, quiet operation and fewer moving parts for reduced maintenance. Typical performance: cools from 25°C to 2°C in ~30 minutes and consumes approximately 15 W in steady-state. The unit includes a PT100 (RTD Class B) sensor, manual defrost, lockable lid and high/low temperature alarms to protect sensitive medical supplies.

Key benefits

• Accurate 2°C–8°C storage with ±1°C control for vaccines, medicines and reagents.
• Compressor-free Stirling cooling (helium) for quiet, efficient, low-maintenance operation.
• Portable 25 L design with wide AC/DC compatibility for stationary and mobile cold-chain use.

Features

• Free-piston Stirling refrigerator.
• Fast cool-down: ~0.5 hour from 25°C to 2°C.
• PT100 temperature sensor (RTD, Class B).
• Low steady-state power consumption (~15 W); maximum power 100 W.
• AC/DC power: 100–240 V AC (50/60 Hz) and 12–24 V DC.
• High-performance polyurethane insulation.
• High and low temperature alarms (setpoint ±1°C) and lockable lid.
• Quiet operation (<50 dB), low vibration and manual defrost.
• Helium-based, non-flammable refrigerant.

Applications

• Vaccine & pharmaceutical storage
  Short-term storage and transport of vaccines, insulin and medicines requiring 2°C–8°C conditions.
• Laboratory & research
  Storage of biological reagents, diagnostic kits, specimens and temperature-sensitive laboratory materials.
• Clinical & healthcare facilities
  Compact refrigerated storage for clinics, hospitals, pharmacies and vaccination centers.
• Mobile & field healthcare
  AC/DC compatibility enables use in ambulances, mobile labs and remote clinics.
• Medical cold-chain transport
  Portable configuration supports refrigerated transport while maintaining controlled conditions.

Technical specifications

• Brand: Labotemp
• Model: PHR-23
• Storage volume: 25 L
• Temperature range: 2°C to 8°C
• Temperature control capability: ±1°C
• Cooling time: ~0.5 hour from 25°C to 2°C
• Cooling technology: Free-piston Stirling cooler
• Refrigerant: Helium (He)
• Heat transfer: Gravity-driven thermosiphon
• Power supply: 100–240 V AC, 50/60 Hz; 12–24 V DC
• Maximum power: 100 W
• Steady-state energy: ~15 W
• Control sensor: RTD (PT100 Class B)
• Sensor precision: ±0.3
• Noise level: <50 dB
• Insulation: High-performance polyurethane foam
• Defrost method: Manual
• Security: Lockable lid
• Alarms: High and low temperature (setpoint ±1°C)
• Interior dimensions (L × W × D): 300 × 250 × 300 mm
• Exterior dimensions (L × W × D): 616 × 392 × 455 mm
• Net weight: 17.5 kg
• Shipping dimensions (L × W × D): 710 × 480 × 530 mm
• Shipping weight: 21 kg
• Operating ambient: 5°C to 35°C
• Maximum relative humidity: 80%
• Maximum altitude: 2000 m