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Darwin LT024 Refrigerated Environmental Chamber
Maintaining stable environmental conditions is essential for laboratories performing product stability studies, environmental testing, controlled storage, and quality assurance applications. The Darwin LT024 Refrigerated Environmental Chamber provides a large-capacity, temperature-controlled environment designed to support laboratories that require reliable cooling and consistent performance for sensitive materials. With a spacious 24 cubic foot chamber and an operating temperature range of 3°C to 15°C, the LT024 is well suited for a wide range of research, pharmaceutical, agricultural, and industrial testing applications.
Unlike standard laboratory refrigerators, refrigerated environmental chambers are engineered to maintain precise, uniform conditions throughout the chamber while supporting long-duration testing protocols. Purchasing a refurbished Darwin LT024 from American Instrument Exchange provides laboratories with dependable environmental testing equipment at significant savings compared with purchasing new equipment.
Darwin LT024 Refrigerated Environmental Chamber Key Features
24 cubic foot chamber capacity
Temperature range from 3°C to 15°C
Refrigerated environmental chamber design
Digital temperature control
Mechanical refrigeration system
Uniform chamber airflow
Large-capacity interior for high-volume testing
Designed for continuous laboratory operation
Suitable for long-term environmental studies
90-day warranty from American Instrument Exchange
Designed for Large-Scale Environmental Testing
The Darwin LT024 was developed for laboratories requiring a spacious, temperature-controlled environment for product conditioning, stability studies, and environmental simulation. Its 24 cubic foot chamber provides ample room for large sample loads, packaged products, research materials, agricultural specimens, and quality control samples while maintaining consistent cooling throughout the chamber.
Unlike conventional cold storage equipment designed primarily for preservation, the LT024 is intended to provide stable environmental conditions for testing protocols where repeatable temperatures are critical. Digital controls and a mechanical refrigeration system work together to maintain reliable chamber performance during both short-term and extended testing applications.
Common Applications
The Darwin LT024 Refrigerated Environmental Chamber is commonly used for:
The Darwin LT024 is well suited for pharmaceutical manufacturers, biotechnology companies, universities, environmental research laboratories, food and beverage testing facilities, agricultural research centers, contract testing laboratories, and industrial quality assurance departments. Its large-capacity chamber makes it especially useful for laboratories processing high sample volumes or conducting long-term environmental studies that require consistent refrigerated conditions.
Reliable Refrigerated Environmental Control
The Darwin LT024 combines a spacious refrigerated chamber with dependable temperature regulation to support laboratories performing environmental testing at temperatures above freezing. Operating from 3°C to 15°C, the chamber is ideal for applications requiring controlled cooling without exposing samples to freezing temperatures. Uniform airflow throughout the chamber promotes consistent temperature distribution, helping laboratories achieve repeatable testing conditions while protecting valuable samples during extended studies.
Typical Samples and Environmental Testing Applications
The 24 cubic foot chamber of the Darwin LT024 provides substantial capacity for laboratories performing environmental testing, stability studies, product conditioning, and controlled refrigerated storage. Its large interior is well suited for pharmaceutical products, packaged materials, agricultural specimens, food and beverage products, research samples, environmental samples, and industrial components that require consistent temperatures between 3°C and 15°C.
The spacious chamber allows laboratories to organize a variety of sample sizes while maintaining adequate airflow throughout the testing area. For optimal performance, samples should be distributed evenly with sufficient clearance around each item to promote uniform air circulation. Proper loading helps maintain consistent chamber temperatures and improves the repeatability of long-term testing protocols.
Energy Efficiency and Operating Costs
The Darwin LT024 was designed for dependable, continuous laboratory operation while maintaining stable refrigerated conditions. Its insulated chamber and mechanical refrigeration system work together to regulate temperatures efficiently, helping reduce fluctuations during extended testing and conditioning cycles.
Because the chamber operates within a moderate refrigerated temperature range rather than ultra-low temperatures, it can provide an energy-efficient solution for laboratories requiring controlled cooling without the operating costs associated with freezer storage. Routine preventative maintenance, including condenser cleaning and inspection of door seals, can help maximize cooling performance and extend the service life of the refrigeration system.
Darwin LT024 Refrigerated Environmental Chamber Key Specifications
Specification
Details
Manufacturer
Darwin Chambers
Model
LT024
Chamber Type
Refrigerated Environmental Chamber
Chamber Capacity
24 cu. ft.
Temperature Range
3°C to 15°C
Temperature Control
Digital Controller
Cooling System
Mechanical Refrigeration
Interior Dimensions
Contact American Instrument Exchange
Exterior Dimensions
Contact American Instrument Exchange
Electrical Requirements
Contact American Instrument Exchange
Specifications are believed to be accurate but may vary depending on production date or factory-installed options. Please verify all specifications prior to purchase.
Darwin LT024 Refrigerated Environmental Chamber Frequently Asked Questions
What is the Darwin LT024 designed for?
The Darwin LT024 is designed for laboratories requiring a large-capacity refrigerated environmental chamber for stability testing, product conditioning, environmental simulation, quality assurance testing, and controlled sample storage.
What types of products can be tested in the chamber?
The chamber is commonly used for pharmaceutical products, agricultural materials, food and beverage samples, packaging materials, research specimens, environmental samples, and industrial products requiring controlled refrigerated conditions.
Why use an environmental chamber instead of a laboratory refrigerator?
While both provide refrigerated storage, an environmental chamber is designed to maintain stable, uniform temperatures throughout the chamber for testing applications. This makes it better suited for product validation, stability studies, and environmental simulation where consistent testing conditions are critical.
Is the chamber suitable for long-term testing?
Yes. The Darwin LT024 was designed for continuous operation and is well suited for long-duration environmental studies, product conditioning, and shelf-life testing requiring stable refrigerated temperatures.
What laboratories commonly use the Darwin LT024?
The LT024 is appropriate for pharmaceutical manufacturers, biotechnology laboratories, universities, agricultural research facilities, food and beverage testing laboratories, environmental research organizations, contract testing laboratories, and industrial quality assurance departments.
Can this chamber be used for routine refrigerated storage?
Yes. In addition to environmental testing, the LT024 can be used for controlled refrigerated storage of materials that benefit from stable temperatures within its operating range of 3°C to 15°C.
Why are some specifications listed as "Contact American Instrument Exchange"?
The Darwin LT024 is an older laboratory chamber, and complete manufacturer documentation may not always be available. American Instrument Exchange can provide additional information regarding dimensions, electrical requirements, and other installation details whenever possible.
Why purchase a refurbished Darwin LT024 from American Instrument Exchange?
Purchasing a refurbished Darwin LT024 from American Instrument Exchange provides laboratories with a dependable refrigerated environmental chamber at substantial savings compared with purchasing new equipment. Featuring a 24 cubic foot chamber, 3°C to 15°C operating range, and reliable mechanical refrigeration, the LT024 offers an excellent solution for environmental testing, stability studies, and controlled product conditioning. Every chamber is inspected and tested prior to shipment and includes a 90-day warranty for added confidence.
Click Hereto see the Darwin LT024 stability chamber on the American Instrument Exchange YouTube channel.
Testing Procedures for Used and Refurbished Laboratory Incubators Ensure Quality and Stability Before Use
Used and refurbished laboratory incubators from American Instrument Exchange are thoroughly tested to ensure optimal performance and temperature stability with laboratory safety standards. Each unit undergoes a detailed inspection and functionality assessment to meet the needs of research, clinical, and industrial labs.
Why Testing Used Laboratory Incubators Is Essential
Before a laboratory incubator is reintroduced into any work environment, it must be tested for:
• Temperature uniformity and accuracy
• Airflow and humidity control (if applicable)
• Door seal integrity and insulation effectiveness
• Electrical and safety system compliance
Comprehensive testing reduces the risk of culture loss, contamination, and equipment failure—especially critical in applications involving cell culture, microbiology, pharmaceutical research, and diagnostics.
Our multi-point testing protocol for used and refurbished incubators ensures reliability, safety, and performance across all models and brands.
Key Testing Procedures for Refurbished and Used Laboratory Incubators
1. Initial Visual Inspection
• Check for cosmetic damage, corrosion, and wear to exterior surfaces, door hinges, and gasket seals
• Inspect power cord, wiring, and display panel for any defects or signs of tampering
• Confirm that shelves, chamber components, and internal fixtures are present and undamaged
2. Functional Testing
• Power on the incubator and verify all display indicators and alarms function correctly
• Test door latch and seal mechanisms for proper closure and insulation
• Run basic temperature cycles to ensure the unit maintains stability over time
3. Temperature Accuracy and Uniformity Tests
• Test internal sensors and controllers using temperature probes
• Measure temperature consistency at multiple chamber locations over several hours
• Confirm that programmable temperature settings respond accurately
4. Airflow and Humidity Control (if applicable)
• Test internal fan operation and airflow distribution
• For humidified incubators, inspect and test humidity reservoirs, sensors, and control systems
• Check for condensation buildup and confirm environmental stability
5. Electrical Safety and Compliance Checks
• Ensure all electrical components are properly grounded
• Perform insulation resistance and leakage current tests
• Verify compliance with current electrical safety standards for laboratory equipment
6. Final Quality Assurance Checklist
• Perform full cycle testing at various temperature setpoints
• Document performance benchmarks and results
All refurbished incubators from American Instrument Exchange are backed by our commitment to quality and precision. With our strict testing procedures, you can rely on your incubator to deliver dependable results from day one.
Repair and Refurbishment Protocol for Used Laboratory Incubators Performance and Quality from American Instrument Exchange
At American Instrument Exchange, every used laboratory incubator we sell goes through a repair and refurbishment protocol. Whether it’s a standard, CO₂, or refrigerated incubator, our goal is to restore each unit to laboratory-level performance—ensuring temperature accuracy, environmental stability, and long-term reliability in your lab.
Why Choose a Refurbished Laboratory Incubator from American Instrument Exchange?
• Fully tested for performance and safety
• Backed by a warranty
• Cost-effective alternative to new equipment
• Environmentally sustainable through reuse and restoration
• Refurbished by expert technicians with decades of lab equipment experience
Step-by-Step Refurbishment Protocol
Every incubator at American Instrument Exchange follows this comprehensive, multi-stage process:
1. Initial Intake & Inspection
• Visual inspection for cosmetic wear, corrosion, dents, or broken components
• Mechanical assessment of door hinges, gaskets, seals, and chamber components
• Document any missing parts or issues requiring repair or replacement
2. Cleaning and Decontamination
• Thorough internal and external cleaning using non-abrasive solutions
• Decontamination/cleaning of surfaces to remove biological, chemical, or particulate residue
• Cleaning of removable parts (e.g., shelves, trays, etc.)
3. Mechanical and Electrical Repair
• Repair or replacement of worn mechanical components such as door latches, fans, hinges, and seals
• Evaluation and repair of control panels, switches, thermostats, and displays
• Inspection and testing of wiring, fuses, relays, and power supplies
4. Environmental Control System Assessment
• For CO₂ incubators: CO₂ sensors, regulators, and gas delivery systems are tested
• For refrigerated incubators: compressors, condensers, and cooling systems are evaluated for performance and leaks
• Fan motors and airflow systems are tested to ensure uniform environmental conditions
5. Temperature and Sensor Testing
• All temperature sensors and controllers are tested using thermometers/probes
• Uniformity and accuracy tested at multiple chamber locations
• For humidified or CO₂ incubators, humidity and CO₂ stability are verified
6. Safety System Testing
• Test of over-temperature protection systems and alarms
• Evaluation of door sensors, safety interlocks, and power failure recovery
7. Final Quality Control and Documentation
• Full performance test run over 24 hours
• Validation of setpoints for temperature, CO₂ (if applicable), and humidity (if applicable)
• Final inspection and cleaning before packaging
• Complete service report
Trust the Experts at American Instrument Exchange
With over 50 years in the lab equipment industry, American Instrument Exchange is a trusted source for high-quality refurbished laboratory incubators. Our proven refurbishment protocol ensures every unit is reliable, accurate, and ready to meet the demands of your lab from day one.
Warranty Information
All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,
Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”
Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.
Return & Cancellation Policy
American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.
Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.
Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.
Ongoing and Extended Support Options
American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.
For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.
For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.
Yes, all equipment from American Instrument Exchange comes with a warranty. Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.
How do you test and recondition the equipment?
Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality. We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.
How do products ship from American Instrument Exchange?
We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.
Return and order cancellation policy
American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.
Are discounts available for educational or non-profit institutions, or for bulk purchases?
Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.
How does your price matching policy work?
We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.
Can I see the equipment in person before committing to a purchase?
Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.
1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.
Can I ship products that I purchased elsewhere to American Instrument for repair?
Yes – please see our repair services page for more information.
