Reach-In Stability Refrigerators

Reach-In Stability Refrigerators. Darwin Chambers has been a leader in the design and manufacture of reach-in chambers and controlled environment rooms for over 20 years. We know that, whatever field you're in, the integrity of your research and specimens is paramount, and that you need precise and dependable units in order to maintain that integrity. That's why we are constantly innovating and finding new ways to help researchers in the United States and around the globe do their best work. Our reach-in stability refrigerators are ideal for researchers looking for exceptional precision and virtually unlimited customization options available. Call Darwin Chambers today at 877-783-6774 or request a free quote through our website.

Our reach-in stability refrigerators are ideal for use in:

Darwin Chambers' Reach-In Stability Refrigerators

All of our units come with a temperature range of 2°C to 15°C, with a control ±0.2°C and uniformity inside the chamber of ±1.0°C. We have a PID controller with autotuning, programmable alarms, ability to ramp/soak, process variable and setpoint variable offset, dual display of actual temperature and setpoint temperature, (process variable and setpoint variable). These controls are all able to be easily changed for upgrades or repairs. If you have other specifications or requirements, contact us to see if we can accommodate your needs.

All of our units have stainless steel siding and shelving. Our antimicrobial handles help keep your samples safe while reducing the spread of pathogens, even E. coli, staph, and salmonella.

With each model, the following options are available:

  • Data Logging
  • Chart Recording
  • Touch Screen Controls
  • Magnetic latch door handle with lock and two keys
  • Tracelock electronic/audit capable locks

Our Refrigeration and Electric Systems

We power our reach-in stability refrigerators with:

  • Unsurpassed temperature control through continuous refrigeration bypass system
  • Refrigeration system factory balanced using CFC-free 134A refrigerant
  • Top-mounted condensing unit
  • Factory pre-engineered capillary tube system with oversized condenser and evaporator to reduce product pull down time and to consistently maintain interior cabinet temperature (non-adjustable capillary tube system superior to problematic expansion valve)
  • Evaporator - epoxy-coated at the time of manufacture to eliminate the potential of corrosion
  • Unit completely pre-wired at factory, and ready for final connection to a 115/60/1 phase - 15 amp dedicated (recommended) outlet. Unit runs approximately 6RLA under test conditions
  • A cord and plug set is included
  • A sole use circuit is recommended

Why Choose Darwin Chambers' Reach-In Stability Refrigerators for Your Research

Our reach-in stability refrigerators not only meet, but exceed FDA and ICH regulations for GMP studies. With each model, you'll get:

Customer Support

We offer free, 24-hour technical support through the lifetime of your reach-in stability refrigerator. All of our staff and technicians are appropriately certified and credentialed professionals, capable of troubleshooting potential issues, explaining technical details, and recommending custom solutions to our clients.

Services and Warranties

We offer the same standard reach-in warranty for all of our stability refrigerators, which includes (subject to change per contract):

  • 2 years all parts
  • 1 year labor
  • 7 years Thermoelectric Cooling Unit
  • 3 years compressor

We will either repair or replace any part that proves defective through improper workmanship or materials on our end.

Quiet Operation

Our reach-in stability chambers utilize quiet, highly efficient DC fans. This means your unit can be stored in a laboratory setting without interrupting your work.

Widely Proven, Non-Proprietary Controllers

We use Fuji Electric controllers, which we have found to be ideal for reach-in stability refrigerators. This controller is commercially available and proven in tens of thousands of installations. Standard functions include autotuning, fuzzy logic, PID control, programmable alarms, calibration capability, ramp/soak, offset capability, etc. A touchscreen control interface is optional. If you prefer a different controller, we can support that too.

Our Services

In addition to our free technical support, we offer a range of services at additional cost. These include:

As we are centrally located in the United States, our technicians are able to quickly reach any location and have experience upgrading and repairing many different systems.

Who We Are

We are an independently owned small business that manufactures all of our products in the United States. We are affiliated with Energy Star and United Nations Global Compact to make our communities and the world a cleaner, healthier, peaceful place.

Reach-In Stability Refrigerator | Darwin Chambers

Whatever industry you're in, trust in Darwin Chambers to deliver the precision and durability you need from your reach-in refrigerators. All of our units meet and exceed industry regulations, and we offer the option to adhere to universal codes such as NSF, FM, FM-4880, UL, UL-508A, CSA and ISO certifications. Our future-proof technologies mean that you will be able to use your Darwin reach-in stability refrigerator for years to come. Call Darwin Chambers today at 877-783-6774 or request a free quote through our website.



The ST011 is a bench top stability refrigerator designed to fit on 24” benchtops or stacked with optional racking.



The ST030 is a single door stability refrigerator.



The ST034 is a single-door stability refrigerator providing extra cubic feet designed for maximum capacity while still allowing passage through most …



The ST055 is a two-door stability refrigerator.



The ST084 is a three-door stability refrigerator.

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