A portable mini ultra-low temperature freezer with 15 L capacity and dual power supply — 220–240 V / 50 Hz (mains) and 24 V DC (vehicle power outlet) —, engineered to simultaneously cover long-distance ULT transport and long-term fixed storage without dry ice. Featuring a high-efficiency HC compressor, VIP insulation, built-in evaporator, and ±3°C uniformity at key characteristic points, the DW-80WZ15 is the most compact solution available for maintaining −80°C in field, logistics, and laboratory conditions.

The refrigeration system uses a high-quality HC (hydrocarbon) compressor with an optimized refrigeration circuit, achieving up to 50% energy savings compared to conventional equivalent systems. The built-in evaporator ensures rapid cool-down after sample loading and maintains a safe, stable temperature with ±3°C uniformity at the cabinet's key characteristic measurement points — eliminating hot spots that could compromise the integrity of vaccines, viruses, and sensitive biological materials.

Dual power supply is the unit's defining feature: connected to the 24 V DC electrical system of trucks, ambulances, or research vans, the DW-80WZ15 maintains internal temperature at −80°C for extended transport periods, fully meeting ULT transport requirements without dry ice. Connected to the 220 V AC mains, it operates as a fixed ultra-low temperature freezer for long-term storage in a laboratory, cold room, or distribution center — delivering identical thermal performance in both modes.

VIP (Vacuum Insulated Panel) insulation maximizes cold retention and extends holdover time during power source transitions between the two operating modes. The built-in metal handle — ergonomic, durable, and low-profile — facilitates manual transport between vehicle and facility. The LED display provides clear internal temperature readout, and the upright cabinet design with 1 inner door allows easy access and sample organization within the 15 L useful volume.

Key Features

• Dual power supply: 220–240 V / 50 Hz (mains) and 24 V DC (vehicle outlet) — one unit for both transport and fixed storage

• Completely eliminates dry ice requirements for −80°C ULT transport

• HC high-efficiency compressor with up to 50% energy savings

• Temperature uniformity of ±3°C at key characteristic cabinet points

• Built-in evaporator for rapid cool-down and safe, stable internal temperature

• VIP insulation for maximum cold retention and extended holdover

• Operating temperature range: −40°C to −80°C

• 15 L / 0.53 cu.ft capacity — compact, portable format for field use

• Built-in metal handle: ergonomic, safe, and durable

• LED display with clear temperature readout

• Exterior dimensions: 690×320×485 mm (W×D×H); interior dimensions: 260×180×330 mm

• Net / gross weight: 25 / 30 kg

• Upright design with 1 inner door

Applications

The DW-80WZ15 is designed for biobanks, vaccine producers and distributors, field research laboratories, biological sample collection and delivery teams, immunobiological distribution centers, and any professional or institution that needs to maintain samples at −80°C during transport — in 24 V trucks, ambulances, research vehicles, or remote missions where dry ice resupply is impractical or unavailable.

The combination of portability, dual power supply, and full ULT performance also makes the unit equally valuable for small laboratories and clinics requiring personal −80°C storage without the cost and footprint of a full-size ULT freezer — or for researchers who need to move samples between facilities without interrupting the cold chain.