Renting or Buying Data Acquisition Instruments: Which Is Better?

Introduction: why the rent or buy decision matters

Modern test and measurement systems are more powerful and specialized than ever before. High-channel-count data acquisition systems, precision power analyzers, torque and vibration instrumentation, high-end NVH analyzers, and synchronized video and GNSS solutions enable engineers to test ever more complex products. Test instruments place pressure on capital expenditure (CAPEX) budgets. As a result, many engineering teams ask themselves an important question: Should we rent test instruments or buy them?

Renting and buying each offer distinct advantages depending on project duration, usage rate, risk tolerance, and technology lifecycle. The good news is that organizations can do both: renting instruments for development or to handle temporary spikes in workload, and buying them for long-term use.

What does renting test instruments mean in a B2B context?

Renting instruments from Dewesoft means quick access to calibrated, fully functional instruments. Rentals don’t have a fixed end-date (except that five years is the maximum). They can be paid monthly or annually. Monthly is better if the user is sure they will not keep the system for more than a few months, but a single annual payment results in a significantly lower monthly cost. Rentals are commonly used for:

• Product development and validation testing

• Certification and compliance campaigns

• Production ramp-up or troubleshooting

• Temporary capacity expansion

An engineering team may rent one or more Dewesoft instruments with universal, high-dynamic-range inputs for short-term vibration, acoustic, and structural testing, as well as power quality analysis, rather than purchasing hardware intended for use only during the project.

The advantages of renting test instruments

Lower upfront cost and favorable accounting impact

One of the most significant advantages of renting test instruments is the reduction in upfront capital expenditure. Rentals are typically treated as operating expenses rather than as fixed assets, simplifying accounting and avoiding the need for depreciation schedules.

For engineering managers, this can mean:

• Faster budget approval

• Reduced impact on capital outlays

• Improved cash flow management

Rather than committing capital to a large DAQ system purchase, teams can rent a configured DAQ system for the duration of a test campaign, aligning costs directly with project timelines. Project leaders and accountants alike typically welcome this approach.

Flexibility to scale instrumentation with project demand

Test workloads are rarely constant or entirely predictable. Validation phases, customer acceptance testing, and certification efforts often require significantly more instrumentation than daily operations.

Renting allows organizations to:

• Rapidly expand channel count or measurement capability

• Support parallel test campaigns without overbuying

• Scale back instrumentation once peak demand passes

For example, during an EV powertrain validation program, an engineering team may temporarily require multiple synchronized systems for inverter efficiency testing, torque ripple analysis, and thermal correlation. Renting provides access to this expanded pool of instruments without permanently increasing the fixed asset base.

DAQ instruments designed to operate within a common ecosystem offer a clear advantage in these cases. For example, Dewesoft instruments, regardless of model or sample rate, can be easily interconnected and synchronized, allowing an existing system to be scaled up quickly without sacrificing ease of use or data synchronization.

Example application:

Electric Motor and Inverter TestingPower and efficiency testing of electric motor and inverter

Faster availability and reduced lead times

Buying brand-new test instruments necessarily involves lead and delivery times. In contrast, rental instruments are typically available immediately.

This is especially valuable when:

• A test bottleneck threatens a project schedule

• An unexpected failure requires rapid root-cause analysis

• A customer or regulatory test must be executed on short notice

Having immediate access to a rental DAQ system with preconfigured signal conditioning and software can prevent costly delays in development or certification. 

Reduced risk through “try before you buy”

Test instrument specifications rarely tell the whole story. Product demonstrations are helpful, but there is no substitute for truly testing an instrument in your application with your machines and test infrastructure. Real-world usability, software workflow, ease of synchronization, and sensor and connector compatibility often determine success or failure.

Renting enables engineering teams to:

• Validate performance under real test conditions

• Evaluate software usability and analysis tools

• Confirm compatibility with existing sensors and infrastructure

For instance, teams considering purchasing a Dewesoft system for mixed-signal testing can rent one for a short time to confirm that high-speed analog, CAN, and power measurements integrate smoothly within their test environment before committing to ownership.

Renting DAQ systems allows engineering teams to align instrumentation cost with project uncertainty, rather than locking capital into fixed assets.

Easier access to the latest technology

Test and measurement technology evolves quickly. Higher sampling rates, improved ADC resolution, better synchronization, and expanded protocol support can make older instruments less useful.

Renting avoids long-term exposure to obsolescence by allowing teams to:

• Use current-generation hardware

• Upgrade easily between projects

• Avoid being locked into older platforms

This is particularly relevant for fast-moving industries such as aerospace, Hybrid and Electric Vehicle (HEV) development, and renewable energy, where test requirements change rapidly.

Maintenance, calibration, and support are simplified

Rental instruments are delivered calibrated and ready for use, and maintenance and repair responsibilities largely rest with the rental provider, whether it’s a rental company or the OEM. Providing solid, calibration-traceable data is a requirement across many industries today, especially energy, automotive, aerospace, and civil engineering.

This reduces:

• Internal calibration workload

• Unexpected repair costs

• Administrative overhead associated with asset tracking

For engineering teams focused on execution rather than asset management, this simplification can be a meaningful operational benefit.

Ideal for short-term, specialized, or compliance testing

Specific tests are inherently intermittent. EMC pre-compliance, environmental stress screening, or customer-specific acceptance tests may only occur occasionally.

In these cases, renting specialized instrumentation such as:

• High-channel-count vibration DAQ (e.g., modal analysis, fatigue testing)

• Precision power analyzers (e.g., power quality, electric vehicle testing, railway power analysis)

• Acoustic and noise measurement systems (e.g., NVH testing, sound quality measurement)

In these situations, renting is often more economical than purchasing equipment that will sit idle for extended periods.

The limitations of renting test instruments

Higher long-term cost for continuous use

If an instrument is used continuously over many years, rental costs will eventually exceed the purchase price. Production-line DAQ or end-of-line test stations are generally better candidates for ownership.

Limited customization and permanent integration

Rental instruments are not always ideal for:

• When hardware or software modifications are required

• Permanent installations (not possible with Dewesoft rentals)

• Highly automated systems

In these scenarios, owning a dedicated test system provides greater control and long-term stability.

When buying test instruments is preferable

Purchasing test instruments is often the better choice when:

• The system is used continuously or daily

• The setup is permanently installed

• The instruments don’t require deep hardware or software customization

• Long-term cost predictability is required

For example, a manufacturing facility performing continuous end-of-line testing may benefit from owning one or more instruments integrated with automated processes.

A balanced approach: rent and buy

Many organizations adopt a balance, or “hybrid” approach:

• Rent during early development and validation

• Purchase once requirements stabilize

• Rent additional instruments for overflow or specialized tests

This approach reduces risk, improves capital efficiency, and ensures that purchased systems are genuinely fit for purpose.

Renting vs buying test instruments: a side-by-side comparison

Is it better to rent or buy test instruments?

• Rent test instruments when requirements are temporary, uncertain, or project-based, such as during product development, validation, certification, or peak test demand.

• Renting is typically preferable when speed matters, instruments are needed immediately, or technology is evolving rapidly.

• Buying test instruments makes more sense for continuous, long-term use, especially in production, end-of-line testing, or permanently installed test systems.

• Ownership is generally more cost-effective when instruments are used daily, and configuration stability is critical.

• A hybrid rent-then-buy approach is often optimal, allowing teams to validate performance and workflow before committing capital.

A case in point: Dewesoft DAQ models available for rental

To address numerous requests, Dewesoft now offers several models and key accessories for rental. It is possible to pay for rental models monthly for maximum flexibility, or to pay annually and save a significant amount of money. Two models are available: the SIRIUSi X 8xUNI, configured with universal signal conditioners. This model is ideal for a wide range of applications, including automotive and NVH:

The SIRIUSi X 8xUNI features eight universal, isolated input amplifiers with high dynamic range, CAN BUS, USB-C, Ethernet for data, power (POE), and synchronization. Multiple units are daisy-chainable. Its inputs can natively handle voltages (±0.1 V to ±100 V ranges), strain gage sensors (full, half, and quarter bridge, 3 or 4-wire hookups, 120 Ω and 350 Ω),  potentiometers, RTD, resistance (ohmic) sensors, IEPE accelerometers, and current (internal shunt for 2 or 20 mA).

Each input features a separate 24-bit sigma-delta ADC with automatic anti-aliasing filtering and simultaneous sampling up to 500 kS/s/ch.

Then, for power measurement and power-quality applications, there is the SIRIUSi-XHS, configured with four high-voltage and four low-voltage inputs (ideal for current sensors). It provides a top sample rate of 15 MS/s for the most demanding applications in power quality, e-mobility, and more.

Detailed SIRIUSi-XHS product information:
SIRIUS® XHS​​​​​​​High-Speed Data Acquisition (DAQ) System

Comparing the models available for rental

These models are typically in stock and available for quick delivery for rentals:

These models include DewesoftX DAQ and analysis software, widely hailed for its ease of use combined with power and flexibility. From the system menu, the user interface language can be switched among the following languages: English (default), Czech, Dutch, German, Finnish, French, Italian, Japanese, Korean, Portuguese, Slovenian, and Spanish. DewesoftX Enterprise license includes all DewesoftX plugins and options, and is included with rental units. 

SIRIUS-X 8xUNI input adapters

The universal inputs of the SIRIUS-X 8xUNI are already extremely capable, but they can be extended to support additional sensors and signal types with several available adapters. DSI (Dewesoft Smart Interfaces) devices have a TEDS chip that the signal conditioner automatically reads for setup and scaling.

These adapters make the SIRIUS-x 8xUNI an even more flexible, multipurpose device. All four of them are available to rent with the SIRIUS-X 8xUNI DAQ system.

The Dewesoft rental shop

The models shown above are available for quick delivery. They can be ordered online at this link:

Data Acquisition Rental

Conclusion: the hybrid rent-and-buy strategy is sensible

The cost of precision power analyzers, torque and vibration instruments, and high-end NVH analyzers is daunting. This is the advantage of flexible Dewesoft instruments, which can handle virtually every signal and sensor type. A single SIRIUSi X 8xUNI can handle virtually every type of DAQ measurement, including NVH, torque, etc, while the SIRIUSi-XHS 4xLV-4xHV is made to handle high-speed, high-voltage, and high-current power measurement and analysis.

Whether you are buying for the long term or renting for short periods of time to cover peak loads, instruments like these make a lot of sense. Having a single, unified DAQ software platform that works across all instruments in a manufacturer’s ecosystem is another key. It reduces training time and costs, prevents user errors, and improves data integrity. DewesoftX software is central to all Dewesoft DAQ instruments.

To conclude, renting and buying test instruments are not competing philosophies. They are complementary tools for today’s test managers.

Renting excels when flexibility, speed, and risk reduction are priorities. 

Buying delivers long-term value when utilization is high and requirements are stable. 

By thoughtfully combining both approaches, engineering teams can optimize costs, capabilities, and confidence throughout the product lifecycle.

FAQ - frequently asked questions

1. What are the main differences between renting and buying Dewesoft DAQ systems?

Renting DAQ instruments involves short-, medium-, or long-term access to equipment as an operating expense (OPEX), while buying requires a larger upfront capital expense (CAPEX) and ownership of the asset. Renting prioritizes speed, whereas buying supports long-term, continuous use.

2. When should engineers choose to rent Dewesoft DAQ systems instead of buying?

Renting is useful when instruments are needed quickly to meet demand for test instruments or when CAPEX funds are not available to purchase them.

3. Does renting Dewesoft DAQ systems help reduce risk?

Renting allows engineers to “try before they buy,” enabling real-world validation of performance, software usability, and compatibility with existing systems. This reduces the risk of investing in unsuitable equipment.

4. What are the main advantages of renting Dewesoft DAQ systems?

Key advantages include lower upfront costs, quick delivery, scalability for changing test demands, access to the latest technology, and reduced responsibility for maintenance and calibration. With Dewesoft’s rental model, the rental handling fee includes an annual calibration and return shipment. Only the instrument shipping cost to Dewesoft is paid by the renter.

5. What are the limitations of renting Dewesoft DAQ systems?

Not every Dewesoft instrument or configuration is available for rental, and the program is not available outside of the EU. This may change over time, but this is the program's current status. Systems may not be rented for more than five years, but they can be returned, and a new rental can be ordered for the latest instrument.

6. When is it better to buy DAQ systems?

Buying is the better option when CAPEX funds are readily available to buy instruments that will be used daily, installed permanently, or integrated into automated systems such as production lines or end-of-line testing. When purchasing, every Dewesoft product is available in every possible configuration. Purchasing instruments provides long-term cost efficiency and full control over customization.

7. What is a hybrid rent-and-buy strategy?

A hybrid approach combines renting instruments to handle peak demand and limited CAPEX monies with purchasing instruments needed for baseline workloads. This strategy reduces risk, optimizes capital investment, and ensures the final system meets real-world needs. Dewesoft offers flexible purchase and rental options.

8. How do modular DAQ systems support both renting and buying strategies?

Synchronizable and intraoperative DAQ platforms such as SIRIUSi X 8xUNI and SIRIUSi-XHS 4xLV4xHV allow engineers to easily scale their test architectures up or down. This flexibility enables combining rental and ownership. It also supports test requirements that expand or contract without significant system trauma and expense.