The Haier DW-30L528D is a −30°C upright biomedical laboratory freezer with a double-door cabinet and 531 L (18.8 cu ft) of capacity, running on a standard 115V/60Hz outlet. Built for reagent, enzyme, sample, and biological-product storage in the −10 to −30°C band, it pairs a high-efficiency hydrocarbon compressor with ±3°C uniformity and microprocessor control to 0.1°C resolution.
Key Specifications
| Model | DW-30L528D |
| Cabinet type | Upright, double door |
| Cooling performance | −30°C |
| Temperature range | −10°C to −30°C |
| Temperature uniformity | ±3°C |
| Refrigeration | High-efficiency HC compressor |
| Capacity | 531 L / 18.8 cu ft |
| Shelves / drawers | 3 adjustable wire shelves; 10 plastic drawers optional |
| Controller / display | Microprocessor (0.1°C), LCD |
| Sound level | 43 dB(A) |
| Power supply | 115 V / 60 Hz |
| Max power | 420 W |
| Certification | UL |
Application Profile
Plenty of laboratory material — many reagents, enzymes, intermediates, and biological products — needs reliable frozen storage but not the −86°C ultra-low band. A −30°C freezer is the correct, more economical tool for that inventory, and the DW-30L528D delivers it in a space-efficient double-door upright that plugs into an ordinary 115V circuit. Its ±3°C uniformity and 0.1°C display resolution give the temperature discipline those samples require without the energy cost of a ULT.
The high-efficiency hydrocarbon compressor and optimized system keep power draw low (420 W) and sound at 43 dB(A). Three adjustable wire shelves organize the cabinet, and optional plastic drawers (up to 10) convert it for organized small-vial or blood-bag storage. A standard 25 mm porthole on each side accepts independent monitoring probes.
Design Architecture
The microprocessor controller displays temperature to 0.1°C and drives a full alarm set: high/low temperature, door ajar, power failure, sensor error, high ambient temperature, and remote alarm in both audible and visible modes. Casters and leveling feet ease placement, and the double-door design lets you open only one side at a time to limit warm-air ingress during routine access. Optional USB and RS-485 add data logging and facility integration.
Frequently Asked Questions
What temperature does the DW-30L528D hold? It operates from −10°C to −30°C with a −30°C cooling performance and ±3°C uniformity.
Is this a ULT freezer? No — it is a −30°C biomedical freezer, the right choice for material stable in the −10 to −30°C range. For −80°C storage, use a DW-86L series ULT.
How much does it hold? 531 L (18.8 cu ft) with 3 adjustable wire shelves; optional plastic drawers organize small containers.
Does it run on a standard outlet? Yes — 115V/60Hz, drawing up to 420 W.
How precise is the temperature control? Microprocessor control with 0.1°C display resolution and ±3°C cabinet uniformity.
Ordering & Configuration
The DW-30L528D is a capital purchase: request a quote for pricing and lead time. Backed by Haier Biomedical's manufacturer warranty — confirm current terms with your quote.
Choose the DW-30L528D when your samples are stable at −30°C and you want an economical, 115V, space-efficient upright rather than paying ULT energy and purchase costs. Step to a −40°C DW-40L model for colder duty, or a DW-86L ULT if you need −80°C.
