Thermo Precision 3759 growth chamber

Brand : Precision

Product Code : SKU 3116F INC

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Thermo Precision 3759 Plant Growth Chamber

Plant science research often requires precise control of temperature, lighting, and environmental conditions to produce reliable and repeatable experimental results. Studies involving plant physiology, seed germination, crop science, plant pathology, tissue culture, environmental biology, and photosynthesis all depend on consistent growing conditions throughout extended research protocols. The Thermo Precision 3759 Plant Growth Chamber is designed to meet these demands with a 17.8 cubic foot (504 L) chamber, programmable fluorescent lighting, refrigeration, microprocessor environmental controls, and a temperature range of -10°C to 50°C (or 10°C to 50°C with lights operating). Its spacious interior and dependable environmental regulation make it an excellent solution for research laboratories requiring controlled plant growth conditions.

Although the Precision 3759 represents an earlier generation of Thermo Scientific plant growth chambers, it continues to be valued for its durable construction, dependable environmental performance, and straightforward operation. Its forced-air circulation system, programmable lighting, compressor-based refrigeration, and digital temperature controls provide the stable conditions required for a broad range of plant growth and environmental research applications. Purchasing a refurbished Thermo Precision 3759 from American Instrument Exchange provides laboratories with a proven research-grade plant growth chamber at a substantial savings compared to purchasing a new system.

Thermo Precision 3759 Key Features

17.8 cu. ft. (504 L) chamber capacity
Temperature range: -10°C to 50°C (or 10°C to 50°C with chamber lighting operating)
Programmable fluorescent lighting system
Forced-air circulation for temperature uniformity
Microprocessor temperature controller
Compressor-based refrigeration system
Four adjustable shelves (expandable to six)
Approximate illumination of 3,678 lux (342 foot-candles) at chamber center
30 mm access port for probes and instrumentation
Interior electrical convenience outlet
Large insulated viewing door
120V electrical operation
90-day warranty from American Instrument Exchange

Designed for Controlled Plant Growth and Environmental Research

The Thermo Precision 3759 is engineered for laboratories that require repeatable environmental conditions for plant growth and biological research. By combining refrigeration, precision heating, programmable fluorescent lighting, and forced-air circulation, the chamber creates a stable growing environment suitable for both routine laboratory studies and long-term research projects. The spacious 17.8 cubic foot interior accommodates multiple experimental groups simultaneously, allowing researchers to maximize chamber utilization while maintaining consistent environmental conditions throughout the workspace.

Unlike a standard laboratory incubator, the Precision 3759 provides integrated environmental controls specifically intended for plant and agricultural research. The refrigeration system allows studies to be conducted at reduced temperatures, while programmable lighting supports controlled photoperiod experiments and growth-cycle simulations. Uniform airflow helps minimize temperature variation throughout the chamber, improving experimental reproducibility across multiple shelving levels. Although this is an older-generation platform, it remains a dependable solution for laboratories seeking reliable plant growth capability without the cost of a new environmental chamber.

Common Applications

The Thermo Precision 3759 is commonly used for:

Plant physiology research
Seed germination studies
Arabidopsis research
Crop science
Plant pathology
Plant tissue culture
Photosynthesis research
Agricultural biotechnology
Environmental biology
Weed science
Forestry research
Botanical education and teaching laboratories

The Precision 3759 is frequently used alongside laboratory refrigerators for storing growth media and reagents, laboratory freezers for preserving plant samples and reference materials, analytical balances for measuring biomass and growth characteristics, centrifuges for sample preparation, and microscopes for plant tissue analysis and developmental studies.

Ideal Laboratory Environments

The Thermo Precision 3759 is an excellent choice for university plant science departments, agricultural research stations, biotechnology companies, government agricultural laboratories, environmental research organizations, forestry research facilities, seed testing laboratories, and botanical teaching laboratories. Its combination of refrigeration, programmable lighting, and dependable environmental control makes it particularly well suited for laboratories performing controlled plant growth experiments and long-term agricultural research.

Why Choose the Thermo Precision 3759?

The Thermo Precision 3759 combines dependable environmental control with a spacious research chamber designed specifically for plant growth and agricultural research. Its programmable lighting, refrigeration system, forced-air circulation, and microprocessor controls provide the stable conditions necessary for reproducible plant science experiments across a wide variety of research disciplines.

Whether supporting crop science, plant physiology, seed germination, environmental biology, or botanical education, the Thermo Precision 3759 delivers the consistent environmental performance required for reliable controlled-environment plant research.

Performance and Environmental Stability

The Thermo Precision 3759 Plant Growth Chamber is designed to provide stable environmental conditions for plant science, agricultural, and environmental research applications requiring precise control of temperature and photoperiod. Its compressor-based refrigeration system allows operation from -10°C to 50°C when the chamber lights are off, while the integrated heating system maintains elevated temperatures for germination, propagation, and plant growth studies. When the lighting system is operating, the chamber maintains temperatures from approximately 10°C to 50°C, accommodating the additional heat generated by the fluorescent lamps while preserving environmental stability.

A microprocessor-based controller continuously regulates chamber temperature, and a forced-air circulation system distributes conditioned air evenly throughout the growing area to minimize temperature variation between shelves. This consistent airflow promotes uniform environmental conditions for all samples within the chamber, helping researchers obtain reproducible results across multiple experiments. Rapid recovery following routine door openings further supports long-term studies by reducing temperature fluctuations that could influence plant development or experimental outcomes.

The integrated fluorescent lighting system allows researchers to establish controlled photoperiods for experiments involving plant growth, seed germination, and photosynthetic organisms. By combining programmable lighting with accurate temperature regulation, the Precision 3759 enables laboratories to simulate a variety of environmental conditions within a single chamber. Its large insulated viewing door also allows users to monitor experiments without unnecessarily disturbing the growing environment.

Although this is an earlier-generation plant growth chamber, its dependable environmental controls, durable construction, and spacious interior continue to make it a practical solution for laboratories performing controlled-environment agricultural and biological research.

Typical Samples and Laboratory Applications

The Thermo Precision 3759 supports a wide variety of plant science and environmental research applications. Typical samples include seeds, seedlings, Arabidopsis, cereal crops, vegetable crops, ornamental plants, mosses, algae, cyanobacteria, fungi, plant tissue cultures, environmental microorganisms, agricultural specimens, soil samples, and forestry research materials.

Common laboratory applications include seed germination testing, plant physiology research, photosynthesis studies, crop science, plant pathology, agricultural biotechnology, environmental biology, weed science, forestry research, controlled-environment agriculture, botanical education, plant breeding, and long-term growth studies requiring repeatable environmental conditions. The spacious chamber accommodates multiple experimental groups simultaneously, making it well suited for university research laboratories and agricultural research programs.

Thermo Precision 3759 Plant Growth Chamber Specifications

Specification	Details
Manufacturer	Thermo Scientific
Model	Precision 3759
Equipment Type	Plant Growth Chamber
Chamber Capacity	17.8 cu. ft. (504 L)
Exterior Dimensions	Approximately 34" W × 38" D × 79" H
Interior Dimensions	Approximately 27" W × 27" D × 42" H
Weight	Approximately 475 lbs
Temperature Range	-10°C to 50°C (lights off); 10°C to 50°C (lights on)
Temperature Control	Microprocessor Digital Controller
Air Circulation	Forced-Air
Refrigeration System	Compressor-Based
Lighting	Programmable Fluorescent Lamps
Light Intensity	Approximately 3,678 lux (342 foot-candles)
Shelves	Four Adjustable Shelves (Expandable to Six)
Access Port	30 mm
Interior Outlet	Yes
Electrical Requirements	120V, 60 Hz

Specifications are compiled from manufacturer literature and American Instrument Exchange product information. Specifications may vary depending on production year and installed options. Please verify chamber dimensions, electrical requirements, lighting configuration, shelf arrangement, and included accessories prior to purchase.

Frequently Asked Questions

What is a plant growth chamber used for?

A plant growth chamber provides controlled temperature and lighting conditions for research involving plants, seeds, algae, fungi, and other photosynthetic or environmentally sensitive organisms. These chambers allow researchers to perform repeatable experiments under carefully controlled environmental conditions.

How is the Thermo Precision 3759 different from a standard laboratory incubator?

Unlike a conventional laboratory incubator, the Precision 3759 combines refrigeration, programmable lighting, and precise temperature control to support plant growth and environmental research. This allows researchers to conduct experiments requiring controlled photoperiods and both refrigerated and elevated-temperature operation.

Why does the temperature range change when the lights are operating?

The fluorescent lighting system generates heat during operation. As a result, the chamber's minimum operating temperature increases to approximately 10°C while the lights are on, ensuring accurate temperature regulation during illuminated growth studies.

What types of research is this chamber best suited for?

The Precision 3759 is commonly used for plant physiology, seed germination, crop science, Arabidopsis research, plant pathology, environmental biology, agricultural biotechnology, photosynthesis research, forestry studies, and botanical education.

Can the chamber support long-term plant growth experiments?

Yes. The combination of precise temperature regulation, programmable lighting, forced-air circulation, and a spacious interior makes the Precision 3759 well suited for extended plant growth studies and other long-duration environmental research projects.

Which laboratories commonly use plant growth chambers?

Plant growth chambers are commonly found in universities, agricultural research centers, biotechnology companies, government laboratories, seed testing facilities, environmental research organizations, forestry programs, and botanical teaching laboratories.

Why purchase a refurbished Thermo Precision 3759 from American Instrument Exchange?

A refurbished Thermo Precision 3759 Plant Growth Chamber from American Instrument Exchange provides laboratories with dependable controlled-environment plant research capability at a substantial savings compared to purchasing a new chamber. Featuring a 17.8 cubic foot chamber, programmable fluorescent lighting, -10°C to 50°C temperature control, forced-air circulation, and a microprocessor-based control system, the Precision 3759 is an excellent choice for plant physiology, crop science, seed germination, agricultural biotechnology, environmental biology, and botanical research. Every unit is thoroughly inspected and tested prior to shipment and includes a 90-day warranty from American Instrument Exchange.

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.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

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.