The refurbished Nikon TMS-F inverted microscope from American Instrument Exchange provides a versatile optical platform for tissue culture observation, biological research, and routine laboratory microscopy. Featuring Nikon's CF optical system, a selection of four objectives, and a built-in photographic port, the TMS-F combines traditional inverted microscopy with the flexibility to support compatible digital imaging equipment.
This Nikon TMS-F includes 4x, 10x, 20x, and 40x objectives, providing a useful range of magnifications for examining biological specimens. Its inverted design allows researchers to observe adherent cells through the bottoms of compatible culture dishes, flasks, and other laboratory vessels.
The microscope features adjustable halogen illumination and a photo port that can accommodate compatible camera equipment when fitted with the appropriate adapters.
Refurbished and tested by American Instrument Exchange, this Nikon TMS-F offers laboratories an economical alternative to purchasing new microscopy equipment. A 90-day warranty is included.
Key Features
Nikon TMS-F inverted biological microscope for cell culture and laboratory research
Includes 4x, 10x, 20x, and 40x objectives
Nikon CF optical system for compatible finite-conjugate objectives
Built-in photographic port for compatible camera attachments
Binocular viewing system for routine specimen observation
20-watt halogen transmitted-light illumination
Adjustable illumination brightness
Revolving objective nosepiece for convenient magnification changes
Supports phase-contrast observation with appropriate components
Compact, durable construction for laboratory workstations
Refurbished and tested by American Instrument Exchange
90-day warranty included from American Instrument Exchange
Overview
The Nikon TMS-F is an inverted laboratory microscope designed for routine tissue culture observation and biological research. Developed as part of Nikon's established TMS microscope family, the TMS-F combines a straightforward optical design with additional flexibility for photographic documentation.
Unlike conventional upright microscopes, the Nikon TMS-F positions its objectives beneath the specimen stage. This allows researchers to examine cells through the bottoms of compatible culture vessels without transferring specimens to conventional microscope slides.
This arrangement is particularly useful for laboratories working with adherent mammalian cells, tissue cultures, and other biological specimens that require repeated observation during experimental procedures.
The microscope incorporates Nikon's CF optical system, designed to provide clear imaging with compatible objectives. Its manual focusing mechanism and adjustable illumination system support routine specimen inspection without the complexity of automated microscopy equipment.
A distinguishing feature of the TMS-F is its photographic port, which provides an optical pathway for attaching compatible camera equipment. This can be useful for laboratories that need to document specimens, capture representative images, or integrate microscopy into research reporting.
Although the TMS-F is an earlier-generation microscope, its practical construction and flexible optical configuration continue to make it useful for routine laboratory applications.
Key Specifications
Specification
Details
Manufacturer
Nikon
Model
TMS-F
AIE SKU
4737K SCOPE
Microscope Type
Inverted biological microscope
Optical System
Nikon CF finite-conjugate
Viewing System
Binocular with photographic port
Eyepieces
Included configuration to be confirmed
Included Objectives
4x, 10x, 20x, 40x
Objective Nosepiece
Revolving; installed capacity to be verified
Nominal Total Magnification
Depends on supplied eyepieces
Illumination
Transmitted-light halogen
Lamp Power
20 watts
Brightness Control
Adjustable
Camera Port
Integrated photographic port
Camera
Not specified as included
Observation Methods
Brightfield; phase contrast with compatible components
Phase-Contrast Accessories
Installed configuration to be verified
Condenser
Compatible Nikon condenser; installed model to be confirmed
Stage
Inverted microscope specimen stage
Focusing
Manual focusing mechanism
Electrical Requirements
Verify supplied voltage configuration
Exterior Dimensions
Verify for supplied configuration
Weight
Verify for supplied configuration
Condition
Refurbished
Warranty
90 days from American Instrument Exchange
Specifications compiled from manufacturer literature, distributor technical references, and American Instrument Exchange product information. Included accessories and configuration-dependent details should be confirmed before purchase.
Optical Performance & Imaging Capabilities
The Nikon TMS-F incorporates an inverted optical arrangement that is particularly useful for examining cells and biological specimens maintained in culture vessels.
Its Nikon CF optical system supports compatible finite-conjugate objectives, providing a practical range of magnifications for routine biological microscopy.
The included 4x objective is useful for surveying larger specimen areas, locating cell colonies, and evaluating general culture distribution. The 10x and 20x objectives provide intermediate magnifications for examining cell growth patterns, morphology, and visible structural characteristics.
The 40x objective supports closer observation of individual cells and selected specimen details.
The microscope's photographic port distinguishes the TMS-F from simpler viewing-only configurations. With suitable camera equipment and optical adapters, researchers can capture microscope images for documentation, comparison, and laboratory records.
The TMS-F platform can also support phase-contrast observation when equipped with compatible phase objectives, matching annular diaphragms, and appropriate condenser components.
Phase contrast improves the visibility of transparent, unstained biological specimens and is particularly useful for routine tissue culture monitoring.
The specific phase-contrast capabilities of this refurbished microscope depend on its installed optical components.
Objectives, Illumination & Accessories
This Nikon TMS-F includes four objectives: 4x, 10x, 20x, and 40x.
Together, these objectives provide flexibility for observing specimens at different levels of magnification. Researchers can begin with a broad survey of a culture vessel and progress to higher magnification when examining individual cells or selected areas of interest.
The microscope uses Nikon's CF optical system, which requires compatible finite-conjugate objectives. Objectives designed for newer Nikon CFI60 infinity-corrected systems should not be assumed compatible with the TMS-F.
The revolving objective nosepiece provides convenient objective selection during routine observation. The number of installed nosepiece positions should be verified for this particular microscope.
Illumination is supplied by a 20-watt halogen transmitted-light system with adjustable brightness control. This allows users to optimize lighting for different objectives and specimen characteristics.
The photographic port supports compatible camera attachments when the appropriate adapters and optical components are installed.
A digital camera, camera adapter, and imaging software are not specified as included with this microscope.
Additional stage accessories, phase-contrast components, and specialized objectives should be confirmed with American Instrument Exchange before purchase.
Common Applications
The Nikon TMS-F is well suited for routine cell culture observation, biological research, and laboratory specimen inspection.
Common applications include monitoring cell growth, evaluating culture confluence, examining cellular morphology, and identifying visible changes in cell populations during experimental procedures.
The microscope can support mammalian cell culture research, biotechnology, pharmaceutical development, cancer biology, and academic biological studies.
Its inverted configuration is particularly useful for examining adherent cells in tissue culture flasks, Petri dishes, and compatible multiwell plates.
The photographic port also makes the TMS-F attractive for laboratories interested in documenting microscope images, provided suitable camera equipment is available.
When equipped with appropriate phase-contrast components, the microscope can support improved visualization of transparent, unstained biological specimens.
Ideal Laboratory Environments
The Nikon TMS-F is appropriate for academic research laboratories, biotechnology companies, pharmaceutical development facilities, and cell culture laboratories.
Its relatively compact construction makes it practical for workstations where researchers perform frequent specimen inspections.
Laboratories using CO2 incubators for mammalian cell culture can use the TMS-F to examine specimens during routine culture monitoring.
The microscope can also complement biosafety cabinets used for aseptic sample handling.
Its photographic port provides additional flexibility for laboratories that want to integrate compatible camera equipment into their microscopy workflow.
The TMS-F may also be suitable for use inside certain biosafety cabinet workspaces, provided its dimensions, positioning, and electrical connections do not interfere with cabinet airflow or safe operating practices.
Refurbishment & Testing
American Instrument Exchange refurbishes and tests used laboratory microscopes before shipment.
For the Nikon TMS-F, relevant inspection procedures include examining the supplied objectives, evaluating optical clarity, and checking the focusing mechanism for smooth and precise operation.
The objective nosepiece, specimen stage, eyepieces, illumination assembly, and accessible mechanical components are inspected for proper functionality.
The 20-watt halogen illumination system is evaluated for consistent operation and appropriate brightness adjustment.
The photographic port and accessible optical components are also inspected as part of the microscope's configuration.
American Instrument Exchange works with professional optics technicians to assess microscope performance and identify mechanical or electrical issues requiring attention.
The microscope is cleaned and evaluated under representative laboratory operating conditions before shipment.
Customers requiring verification of specific camera compatibility, phase-contrast components, or specialized accessories should communicate those requirements before ordering.
A 90-day warranty is included from American Instrument Exchange.
Shipping & Installation
American Instrument Exchange prepares refurbished microscopes for shipment from its Haverhill, Massachusetts facility.
Careful packaging helps protect the microscope's objectives, eyepieces, photographic port, focusing mechanisms, and other sensitive optical components during transportation.
Removable accessories may be secured separately to reduce the risk of shipping damage.
After delivery, the Nikon TMS-F should be installed on a stable, level laboratory work surface with appropriate electrical access.
Users should verify that all supplied objectives and accessories are correctly installed before beginning routine observation.
Laboratories planning to attach camera equipment should verify compatibility with the photographic port and confirm that appropriate adapters are available.
Related Laboratory Equipment
American Instrument Exchange offers a selection of refurbished microscopes for biological research, tissue culture, and laboratory inspection.
Laboratories seeking a more recent Nikon inverted microscope can also explore the Nikon Eclipse Ts2, which features Nikon's newer CFI60 infinity-corrected optical system and LED illumination.
These instruments support cell culture preparation, incubation, observation, and laboratory research documentation.
Frequently Asked Questions
What is the difference between the Nikon TMS and TMS-F microscopes?
Both are inverted microscopes designed for routine biological observation. The TMS-F includes a photographic port that can support compatible camera attachments, making it useful for laboratories interested in microscope image documentation.
Which objectives are included with this Nikon TMS-F?
The American Instrument Exchange listing identifies four objectives: 4x, 10x, 20x, and 40x. The exact objective specifications and nosepiece arrangement should be confirmed before purchase.
Does the Nikon TMS-F include a digital camera?
A digital camera is not specified as included. The microscope has a photographic port that can accommodate compatible imaging equipment when the appropriate adapters are installed.
Can the Nikon TMS-F perform phase-contrast microscopy?
The TMS-F platform supports phase-contrast configurations when equipped with compatible phase objectives and matching illumination components. The installed configuration should be verified before purchase.
Is the Nikon TMS-F suitable for tissue culture observation?
Yes. Its inverted optical arrangement is particularly useful for examining adherent cells and other biological specimens maintained in compatible culture vessels.
Can the Nikon TMS-F be used inside a biosafety cabinet?
The microscope may fit inside certain biosafety cabinet workspaces. Users should verify cabinet dimensions and ensure that the instrument does not interfere with airflow or safe operating practices.
What warranty is included?
A 90-day warranty is included from American Instrument Exchange. The microscope is refurbished and tested before shipment.
Click Hereto see the Nikon TMS-F inverted microscope on the American Instrument Exchange YouTube channel.
Testing Procedures for Used and Refurbished Laboratory Equipment
Ensure Accuracy, Safety, and Dependable Performance Across Applications
At American Instrument Exchange, all used and refurbished laboratory equipment undergoes a rigorous, multi-point testing protocol to ensure optimal performance, operational safety, and long-term reliability. Whether the equipment is destined for research, diagnostics, quality control, or production environments, our thorough inspection and testing process is designed to meet the highest standards of laboratory excellence.
Why Testing Used Lab Equipment Is Essential
Before any refurbished laboratory equipment is returned to service, it must be carefully tested to verify:
• Functional integrity and operational performance
• Setpoint accuracy and repeatability (where applicable)
• User interface responsiveness and control features
Proper testing reduces the risk of equipment failure, measurement inaccuracies, or user hazards—helping to ensure consistent results in clinical, academic, biotech, and industrial labs.
Our standardized lab equipment testing procedures are tailored to each equipment type, ensuring every unit meets manufacturer specifications and industry benchmarks.
Key Testing Procedures for Refurbished and Used Laboratory Equipment
1. Initial Visual Inspection
• Examine equipment housing for signs of wear, corrosion, or damage
• Check ports, power cords, and exterior components for tampering or deterioration
• Verify that internal and external parts (racks, shelves, connectors, accessories) are present and undamaged
2. Functional Startup and Operational Testing
• Power on the equipment and verify startup diagnostics
• Confirm functionality of displays, buttons, switches, and control panels
• Run basic functions to confirm proper response and behavior under standard operating conditions
3. Testing and Performance Verification
• Test internal sensors or control systems using industry-standard tools
• Perform operational tests to validate accuracy and consistency
• Verify key performance specifications such as temperature control, timing, speed, or measurement outputs, depending on equipment type
4. Mechanical and Electrical System Testing
• Evaluate motors, pumps, fans, or other moving parts for smooth operation
• Inspect and test wiring, relays, fuses, and circuit boards for safety and reliability
• Test power delivery and grounding compliance
5. Safety and Compliance Checks
• Ensure equipment is grounded and insulated to meet laboratory safety standards
• Test alarms, interlocks, emergency stops, or safety shutdown systems if applicable
6. Final Quality Assurance and Documentation
• Perform extended runtime testing
• Document operational logs, testing results, and any repairs or adjustments made
• Complete a final inspection, thorough cleaning, and packaging for delivery
Trusted Quality from American Instrument Exchange
With over 50 years of experience in laboratory equipment refurbishment, American Instrument Exchange is committed to delivering certified, lab-ready instruments backed by expert testing. Our testing protocols ensure that each piece of equipment—regardless of type—is safe, accurate, and dependable from day one.
Whether you're equipping a startup lab or expanding a high-throughput facility, you can count on our refurbished laboratory equipment to perform with precision and reliability.
Refurbishment Protocol for Used Laboratory Equipment from American Instrument Exchange
At American Instrument Exchange, every piece of used laboratory equipment we offer undergoes a multi-step refurbishment process. Whether it's an analytical balance, centrifuge, freezer, oven, or any other essential lab instrument, our goal is to restore each unit to peak performance—ensuring accuracy, safety, and long-term reliability in scientific, clinical, industrial, and academic environments.
Why Choose Refurbished Lab Equipment from American Instrument Exchange?
• Thoroughly tested for performance, precision, and safety
• Backed by a warranty
• A cost-effective alternative to new equipment
• Environmentally sustainable through equipment reuse and waste reduction
• Serviced by expert technicians with decades of laboratory equipment experience
Step-by-Step Refurbishment Protocol
Every instrument and system refurbished at American Instrument Exchange follows a detailed, industry-aligned process:
1. Initial Intake & Inspection
• Complete visual and structural inspection for cosmetic damage, wear, or corrosion
• Mechanical assessment of hinges, seals, fasteners, motors, and moving parts
• Missing components and damaged items are documented for repair or replacement
2. Cleaning and Decontamination
• Full internal and external cleaning using non-abrasive, lab-safe solutions
• Removal of biological, chemical, or particulate contamination
• Disassembly and cleaning of removable parts such as trays, shelves, and filters
3. Mechanical and Electrical Repair
• Replacement or repair of worn or broken mechanical parts
• Evaluation and servicing of control panels, sensors, switches, and displays
• Testing and repair of electrical wiring, fuses, circuit boards, and power supplies
4. Functional System Testing
• Assessment of all major functions specific to the equipment type (e.g., speed, temperature, force, weight, timing)
• Operation of control interfaces, programming menus, and digital displays
• Verification of stabilization time, responsiveness, and user input reliability
5. Testing and Performance Verification
• Testing of internal sensors, controllers, and measurement systems using certified tools
• Multi-point testing to ensure repeatability, accuracy, and performance consistency
• Confirmation of user-defined setpoints, timing sequences, or programmable cycles
6. Safety and Compliance Checks
• Testing of safety interlocks, alarms, and over-limit protection systems (as applicable)
• Electrical safety inspections, including grounding and insulation verification
7. Final Quality Assurance and Documentation
• Full operational testing under simulated lab conditions
• Completion of performance benchmarks, testing results, and repair logs
• Final cleaning and visual inspection
Trust the Experts at American Instrument Exchange
With over 50 years of experience in the laboratory equipment industry, American Instrument Exchange is a trusted leader in high-quality refurbished lab instruments. Our refurbishment protocols ensure that every piece of equipment we sell is lab-ready—offering the precision, performance, and durability your team can count on.
Whether you’re outfitting a new lab or expanding an existing operation, choose American Instrument Exchange for tested, warrantied, and cost-effective laboratory equipment.
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.
