The Thermo Scientific Precision 30MR Refrigerated Incubator is a large-capacity floor-standing laboratory incubator designed for microbiology, environmental research, pharmaceutical testing, sample conditioning, stability studies, and other applications requiring controlled temperatures both below and above ambient. With a substantial 30 cu. ft. chamber, mechanical convection, refrigerated operation, a glass observation door, and forced-air temperature control, the Precision 30MR provides considerably more usable capacity than a conventional benchtop incubator.
Available used and refurbished from American Instrument Exchange, the Thermo Precision 30MR is particularly well suited for laboratories processing large sample loads or conducting multiple temperature-controlled studies simultaneously. Its combination of refrigeration, mechanical air circulation, rapid temperature recovery, and high-capacity chamber space makes it a versatile option for research, testing, and quality-control laboratories.
Key Features
Large 30 cu. ft. refrigerated incubation chamber
Refrigerated operation for below-ambient temperature applications
Mechanical convection
Direct-drive blower for continuous chamber air circulation
Approximately ±0.5°C temperature uniformity at 37°C
Microprocessor temperature control
Digital temperature display
Glass observation door
Large floor-standing reach-in configuration
Two internal electrical outlets for compatible auxiliary equipment
Adjustable shelving for large or varied sample loads
Over-temperature protection
Designed for rapid temperature recovery following door openings
120V, 60 Hz electrical configuration
Professionally inspected and temperature tested by American Instrument Exchange
90-day warranty included
Thermo Scientific Precision 30MR Overview
The Thermo Scientific Precision 30MR was designed for laboratories that need considerably more incubation capacity than a conventional benchtop unit can provide. Its 30 cu. ft. chamber allows large numbers of samples, containers, culture vessels, or experimental assemblies to be maintained within a single controlled-temperature environment.
The 30MR is the refrigerated or low-temperature version of Thermo's Precision 30 cu. ft. incubator platform. This distinction is important because the related Precision 30M is a standard-temperature incubator, while the 30MR incorporates refrigeration for applications requiring controlled conditions below normal laboratory ambient temperature.
Mechanical convection is used to distribute conditioned air throughout the large chamber. A direct-drive blower continuously circulates air, helping maintain consistent temperatures around samples positioned at different heights and locations within the incubator.
The glass observation door allows researchers to inspect samples without immediately opening the chamber to the surrounding laboratory. This is particularly useful during extended studies because unnecessary door openings can disturb chamber temperature and increase recovery time.
Two internal electrical outlets provide power for compatible auxiliary equipment operating inside the chamber. This expands the 30MR's usefulness for applications requiring powered devices such as shakers, stirrers, mixers, or other experimental equipment that can safely operate under the selected chamber conditions.
Common Applications
The Thermo Precision 30MR is well suited for microbiology, environmental research, pharmaceutical testing, biotechnology, stability studies, sample conditioning, food and beverage testing, product testing, and other large-scale controlled-temperature laboratory applications.
Its refrigerated capability makes the 30MR particularly useful for procedures requiring temperatures below normal room conditions. At the same time, the chamber can support conventional elevated-temperature incubation, allowing one unit to cover a wider range of experimental conditions than a standard non-refrigerated incubator.
The 30 cu. ft. chamber is also an important advantage for laboratories processing high sample volumes. Multiple projects or sample groups can be organized across different shelves while remaining within the same controlled environment.
For applications involving powered equipment, the internal electrical outlets allow compatible devices to operate directly inside the incubator. This can be valuable for temperature-controlled mixing, agitation, or other procedures that cannot be performed using passive sample storage alone.
The Thermo Precision 30MR is best considered a large-capacity refrigerated general-purpose incubator. Its primary strength is controlled temperature across a substantial chamber rather than specialized atmospheric control such as CO₂ or active humidity.
Common Samples & Applications
Microbiological cultures
Environmental samples
Pharmaceutical research samples
Stability-study samples
Biotechnology samples
Food and beverage testing samples
Quality-control specimens
Temperature-conditioned products and materials
Large experimental sample batches
Typical Laboratory Vessels & Equipment
Culture bottles and flasks
Sample bottles
Test tubes and racks
Trays and sample carriers
Packaged products
Large sample containers
Stability-study samples
Compatible powered auxiliary equipment
The large 30 cu. ft. interior allows the chamber to accommodate considerably more material than a standard laboratory incubator. Researchers should maintain appropriate spacing between samples so that mechanically circulated air can move freely throughout the chamber.
The two internal electrical outlets provide additional flexibility for specialized applications. Any equipment operated inside the chamber should be evaluated for electrical load, dimensions, heat generation, operating-temperature compatibility, and its potential effect on chamber airflow and temperature performance.
Temperature Control & Environmental Stability
Temperature performance is one of the most important considerations in a chamber as large as the Precision 30MR. The system combines refrigeration, heating, microprocessor control, and mechanical air circulation to establish stable conditions throughout the 30 cu. ft. interior.
A direct-drive blower continuously circulates conditioned air through the chamber. Active circulation helps minimize temperature differences between the upper and lower portions of the incubator and supports consistent conditions when the chamber contains substantial sample loads.
Published specifications for the Precision 30MR platform indicate temperature uniformity of approximately ±0.5°C at 37°C under specified operating conditions. The mechanically circulated design also promotes relatively rapid recovery after the chamber door has been opened.
Microprocessor temperature control allows researchers to select the desired operating setpoint, while the digital display provides straightforward monitoring of actual chamber temperature. Over-temperature protection provides an additional layer of safety for samples and equipment.
The glass observation door can also contribute to environmental stability during routine use. Researchers can visually inspect the chamber without fully opening it, reducing unnecessary exchanges between conditioned chamber air and the surrounding laboratory environment.
Refrigeration is what fundamentally differentiates the 30MR from the standard Precision 30M. Laboratories requiring only elevated temperatures may not need the additional cooling system, while researchers performing below-ambient studies gain substantially greater flexibility from the 30MR configuration.
For laboratories needing both large chamber capacity and refrigerated temperature control, the combination of a 30 cu. ft. interior, mechanical convection, internal electrical power, and straightforward microprocessor operation makes the Thermo Precision 30MR a particularly useful older-generation incubator.
Thermo Scientific Precision 30MR Specifications
Specification
Details
Manufacturer
Thermo Scientific / Precision
Model
30MR
Model Configuration
Low-Temperature / Refrigerated
Equipment Type
Large-Capacity Refrigerated Incubator
Chamber Capacity
30 cu. ft.
Temperature Control
Microprocessor
Refrigeration
Yes
Air Circulation
Mechanical convection
Circulation System
Direct-drive blower
Temperature Uniformity
Approximately ±0.5°C at 37°C
Door Configuration
Glass observation door on this unit
Internal Electrical Outlets
2
Shelving
Adjustable
CO₂ Control
No
Active Humidity Control
No
Electrical Requirements
120V, 60 Hz
Rated Power
Approximately 2150 W for 30MR platform
Configuration
Floor-standing / reach-in
The Thermo Precision 30 cu. ft. platform was produced in multiple configurations, including standard-temperature 30M and refrigerated 30MR models with solid or glass doors. Confirm the individual unit's temperature range, dimensions, shelving, electrical requirements, refrigeration configuration, and included accessories before purchase.
What is the difference between the Thermo Precision 30M and 30MR?
The primary difference is refrigeration. The Precision 30M is the standard-temperature version, while the 30MR is the low-temperature refrigerated model. Refrigeration allows the 30MR to maintain controlled conditions below normal laboratory ambient temperature.
How large is the Thermo Precision 30MR?
The Precision 30MR provides approximately 30 cu. ft. of chamber capacity, making it substantially larger than conventional 3- to 7-cu.-ft. benchtop incubators. This makes it particularly useful for large sample loads, multiple simultaneous studies, or oversized experimental equipment.
Why does the Precision 30MR use mechanical convection?
Mechanical convection uses a blower to actively circulate conditioned air throughout the chamber. In a large 30 cu. ft. incubator, this helps maintain consistent temperatures between samples positioned at different heights and locations while also promoting faster recovery after door openings.
What are the internal electrical outlets used for?
The 30MR incorporates two internal electrical outlets that can power compatible auxiliary equipment inside the chamber. Depending on the application, this may include shakers, stirrers, mixers, or other devices designed to operate safely under the selected incubation conditions.
Does the Thermo Precision 30MR control CO₂ or humidity?
No. The Precision 30MR is primarily a temperature-controlled refrigerated incubator. It does not provide the regulated CO₂ atmosphere required for conventional mammalian cell culture or the active relative-humidity control found in a dedicated environmental chamber.
Is the Thermo Precision 30MR suitable for large sample loads?
Yes. Large-capacity incubation is one of the strongest reasons to choose the 30MR. Its 30 cu. ft. chamber provides substantial space for multiple sample batches, large containers, stability samples, or specialized experimental equipment.
Is this Thermo Precision 30MR refurbished?
Used Thermo Precision 30MR incubators offered by American Instrument Exchange are inspected, cleaned, and tested prior to shipment. Temperature-controlled equipment is evaluated using calibrated monitoring equipment to verify chamber performance and the accuracy of the controls and readouts. Refrigeration, heating, mechanical circulation, safety systems, internal electrical functions, and other installed components are tested as applicable, with parts replaced as necessary. Refurbished equipment includes a 90-day warranty.
Click Hereto see the Thermo Scientific 30MR 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.
