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Reference 600+

The Reference 600+ is being discontinued and replaced with the Reference 620.

The 600+  is a high-performance potentiostat/galvanostat/ZRA particularly suitable for applications in physical electrochemistry, sensors, coatings, and corrosion.

Key features of the 600+ include:

  • Designed for fast, low-current measurements
  • Maximum Applied Potential - ±11 V
  • EIS - 10 μHz - 5 MHz

For techniques including:

  • Physical Electrochemistry
  • Pulse Voltammetry 
  • Electrochemical Energy

System Highlights


The Reference 600+ is a high-performance, research-grade potentiostat/galvanostat/ZRA designed for fast, low-current measurements.  It does well for a variety of applications such as physical electrochemistry (especially at microelectrodes), fast cyclic voltammetry, electrochemical corrosion, electrochemical noise measurements, paints and coatings, and sensors.  

It has a number of auxiliary input and outputs designed to help you interface or control ancillary equipment such as a rotating disc electrode. It also has a thermocouple input for temperature measurements. 

Electrochemical Impedance Spectroscopy

The Reference 600+ comes fully equipped to perform electrochemical impedance spectroscopy.  The Accuracy Contour Plot shown below provides a detailed look at the performance you can expect from your instrument in real-world situations. The results include the cell cable.

Reference600 Plus ACP limits


  • Extended Cable Lengths
    • Extended length cell cables (1.5 m, 3 m, 10 m) are also available for your convenience.

More Details

Below are additional details regarding the capabilities of the Reference 600+ potentiostat. Each bullet point contains a list of the type of techniques available for the instrument to run.

  • Physical Electrochemistry  - Techniques such as cyclic voltammetry, chronoamperometry, and chronopotentiometry and derivatives of these techniques.  
  • Pulse VoltammetryTechniques such as pulse voltammetry, square wave voltammetry, and associated stripping techniques such as anodic stripping voltammetry.  
  • DC CorrosionRun standard DC corrosion tests such as polarization resistance, potentiodynamic, cyclic polarization, and galvanic corrosion in addition to a number of others.
  • Electrochemical EnergyTest single-cells and stacks of various batteries, fuel cells or supercapacitors. Includes charge, discharge, cyclic charge-discharge techniques, potentiostatic, galvanostatic, self-discharge, leakage rate, and read cell voltage.
  • Electrochemical Signal Analyzer -  Designed specifically for the acquisition and analysis of time-dependent electrochemical noise signals. Cell voltage and current are continuously monitored at rates from 0.1 Hz to 1 kHz. A full featured set of analysis tools provides powerful analysis features such as statistical analysis, detrending, impedance spectra, and histogram analysis.
  • Electrochemical Frequency ModulationA non-destructive corrosion rate measurement technique. It allows for measurement of the corrosion rate without prior knowledge of the Tafel constants. In addition, the technique determines the Tafel constants and provides 2 internal validity checks.
  • Critical Pitting Temperaturecontrols a Gamry Potentiostat, TDC4 Temperature Controller, and associated accessories to automatically measure the Critical Pitting Temperature of a material.
  • Electrochemical NoiseA more general form of electrochemical noise testing. It is also an ECM8 Multiplexer compatible electrochemical noise software package. 
  • Electrochemical Impedance Spectroscopyincludes experimental scripts for potentiostatic, galvanostatic and hybrid impedance spectroscopy experiments in addition to single frequency techniques like Mott-Schottky. We also have our unique power-leveling multisine technique that improves signal-to-noise across the spectrum. On the analysis side, it provides tools for fitting spectra to equivalent circuit models, Kramers-Kronig transform for data validation and a graphical model editor. Our software even includes a script for EIS simulation.
  • eChemDC Toolkitcontains all of the capabilities of the eChemBasic and further extends these capabilities by adding advanced signals and data acquisition modes to simplify implementing experiments like cyclic voltammetry, pulse voltammetry, and dynamic DC corrosion techniques. Also includes more advanced stop tests, particularly useful in fast experiments.
  • eChemAC - Includes full capabilities of eChemDC Toolkit plus allows electrochemical impedance spectroscopy (EIS) and EFM experiments.

Other features

  • 2, 3, and 4 electrode measurements
  • Electrical Isolation
    • Floating instrument: use with autoclaves, mechanical stress apparatus, or pipeline probes.
  • Built-In EIS
    • On-board DDS to perform EIS from 10 µHz to 5 MHz. 
  • DSP (Digital Signal Processing) Mode
    • Oversamples for improved signal-to-noise and accurate capacitance measurements.
  • Current Interrupt and Positive Feedback iR Compensation
    • Gamry potentiostats and their controlling software use control loop algorithms to accurately measure and correct for uncompensated resistance.
  • Auxiliary I/O
    • Control additional equipment via additional I/O interfaces: external signal input, analog voltage output, analog current output, auxiliary A/D input, and digital I/O connector.
  • Warranty
    • Protected by 2-year factory service warranty.





Potentiostat Yes
Galvanostat Yes
Zero Resistance Ammeter Yes
Floating (Isolated from Earth Ground) Yes
Cell Connections 2, 3, 4, 5, or 6 (includes Aux channel)
Maximum Current ±600 mA
Current Ranges 11 (60 pA - 600 mA)
Current Ranges
(including internal gain)
Minimum Current Resolution 20 aA
Maximum Applied Potential ±11 V
Rise Time <250 ns
Minimum Time Base 3.333 μs
Noise and Ripple <2 μV rms
Weight 3 kg
Dimensions 9 (W) x 19 (H) x 27 (D) cm


Compliance Voltage ±22 V
Output Current >±600 mA
Speed Settings 5


EIS 10 μHz - 5 MHz
EIS Accuracy See Accuracy
Contour Plot
Voltage AC Amplitude 3 V maximum
Current AC Amplitude 600 mA maximum


Input Impedance >1014 Ω || <0.2 pF
Input Current (typical) <10 pA
Bandwidth >15 MHz at -3 dB
CMRR 65 dB (1 MHz)


Applied Accuracy    ±1 mV ±0.2% of setting
Applied Resolution 200 μV, 50 μV, 12.5 μV/bit
Measured Accuracy ±1 mV ±0.2% of reading
Measured Resolution 1 μV, 10 μV, 100 μV, 400 μV/bit


Applied/Measured Accuracy    ±10 pA ± 0.05% of range ±0.2% of value (600 mA - 6 nA)
or 0.75% of value (600 pA)
or 1.5% of value (60 pA)
Applied/Measured  Resolution 0.003% full-scale/bit
Bandwidth >10 MHz (600 mA – 600 μA)
>0.15 MHz (6 μA))


Seal of Quality

Select Science Bronze Badge for the Reference 600+
The Reference 600+ Potentiostat has been awarded a prized SelectScience Seal of Quality in recognition of the consistently positive feedback it receives from scientists. 


Essential for the development of protective coatings.

Rating: 5.0 5 Out of 5 Stars

Organization: Luna Innovations

Application Area: Performance of sol-gel coatings to prevent galvanic and crevice corrosion

"The Reference 600 is an essential piece of equipment that helps me to characterize the performance of sol-gel coatings that are designed to prevent general, galvanic, and crevice corrosion. The user interface is intuitive and easy to use and whenever I have questions or need help, the customer support is always available and willing to help. I consider the Reference 600 an affordable potentiostat and essential for the development of protective coatings."

Very good potentiostat/galvanostat, easy to use and robust.

Rating: 4.3 4.33 Out of 5 Stars

Organization: The University of Akron

Application Area: Corrosion

"Very good potentiostat/galvanostat, easy to use and robust. It works fine for both AC and DC measurements. Computer control and software is friendly."

Easy setup, good help videos and works great!

Rating: 5.0 5 Out of 5 Stars

Organization: ArcelorMittal Global R&D

Application Area: Corrosion testing of steels and coatings

"I am new to the electrochemistry testing world. This is my first purchase from Gamry. I am investigating corrosion testing for steels and coatings. The setup was easy. There are several instruction videos and application notes which I referred to and are very helpful. I was able to run the instrument and conduct my tests in no time. The system is easy to use, easy to customize and the results are repeatable. I would consider buying again."

Very good results at all times and reliable.

Rating: 5.0 5 Out of 5 Stars

Organization: Universidad nacional Autonoma de Mexico

Application Area: Corrosion resistance

"I have been using Gamry potentiostats since 2001 and I am very satisfied, they are easy to use, maintanin and very reliable. I already have three different instruments since the demand for them is high."

Sensitive, confident and relatively easy to use instrument.

Rating: 4.7 4.7 Out of 5 Stars

Organization: University of Chemistry and Technology

Application Area: Electrochemical corrosion testing

"Ease of use: Use of the software is intuitive and trouble-free. After Sales Care: We have long-term excellent experience with after-sales care from Gamry - e.g. memory extension in an older Reference600 etc. Value for Money: Reference 600+ is highly sensitive and can be applied for very high impedance measurements. As a big advantage I have the option to check the current-potential figure (Lissajousse) during EIS measurements. We have more than 18 experiences with failure-free performance of some of our Gamry potentiostats and we believe Reference600+ will do the same."

Excellent! Its a powerful instrument.

Rating: 5.0 5 Out of 5 Stars

Organization: Chemical Engeneering Faculty and Textile

Application Area: Corrosion: natural inhibitors, corrosion rate metals, etc

"Reference 600 It is a dream piece of equipment, easy to use, portable and with great reproducibility of results. It has allowed us to make some publications of our research projects on corrosion inhibitors and aluminum anodizing."

Reference 600+ is the best partner in my research. Thank you for developing it.

Rating: 4.3 4.3 Out of 5 Stars

Application Area: Corrosion life prediction

"I used the Reference 600 when I first started studying corrosion in university. Now that I have a job at a research institute related to corrosion, I have come to use it again because the Gamry instrument is easy to use and the sensitivity is very good. It's not cheap, but I'm willing to pay for it because it gives good results. I recently made an additional purchase of a Reference 600+. It will continue to be my best friend for my research. Thank you to the engineers and researchers who developed the equipment."

Very good equipment.

Rating: 4.3 4.3 Out of 5 Stars

Organization: UERJ

Application Area: Corrosion, materials science

"Gamry Reference 600+Potentiostats are made to be simple but very reliable."

Very suitable tool for materials evaluation.

Rating: 4.7 4.7 Out of 5 Stars

Organization: BAM

Application Area: Electrochemistry

"This potentiostat system provides a huge variety of measurement opportunities. Together with suitable electrodes it helps us to understand a lot of corrosion phenomena."

Number one for sure.

Rating: 5.0 5 Out of 5 Stars

Organization: DOW CHEMICAL

Application Area: Corrosion studies

"Excellent product and service. I am very happy with this instrument and great technical support. I will definitely by from Gamry if I need any electrochemical equipment and consumables."

Great results. We use the instrument daily.

Rating: 5.0 5 Out of 5 Stars

Organization: Toyota Motor North America R&D

Application Area: Electrochemical study

"Excellent instrument with very intuitive and capable software. The follow-up and service from Gamry is outstanding. They always help us, even with recommendations on how to set up our experiments. Cannot recommend Gamry enough."

High quality potentiostat.

Rating: 4.7 4.7 Out of 5 Stars

Organization: University of Southern California

Application Area: Microbiology

"This Gamry potentiostat is easy to use, very sensitive, and gives reproducible results. It is also small and portable. Instrument is more or less working fine after 10 years. We have also received good customer service when needed for troubleshooting or repair."

Good, capable and portable potentiostat.

Rating: 4.7 4.7 Out of 5 Stars

Organization: IMRE, A*STAR

Application Area: Electrochemical measurements, batteries, electrocatalysis

"Reference 600+ is reasonably portable, ideal for in-situ experiments. Software is easy to use, although the UI is a bit lacking compared to other brands, for example it couldn't modify your settings on the fly. But, there is an option of customised scripting that expands the experiment possibility if you're willing to invest some time to learn to code. Price is slightly more affordable than other potentiostat with similar capabilities. After sales is reasonable, queries and service request through distributor network is usually prompt, but repairs can take a while if the parts or your hardware need to be shipped to the US."

Good product.

Rating: 4.0 4 Out of 5 Stars

Organization: EPRI

Application Area: Corrosion of metals

"Excellent technical service after sales. However, the product is very sensitive to grounding causing noise in results."

Great tool to measure Rp trending for corrosion measurements!

Rating: 5.0 5 Out of 5 Stars

Organization: ExxonMobil

Application Area: Corrosion testing

"Easy to use and reliable. However, sometimes we experienced overloading issues when runing Rp trending measurements."

Great value and functionality

Rating: 5.0 5 Out of 5 Stars

Organization: University of Utah

Application Area: Electrochemistry of molten salts

"We originally used only Autolab potentiostats in our lab, but the value and features of the Gamry potentiostats led us to purchase the Interface 1000 and Reference 600. We have been very pleased with these instruments. They are particularly powerful for the corrosion methods such as ZRA."

Very reliable and versatile

Rating: 5.0 5 Out of 5 Stars

Organization: Materia Inc

Application Area: Evaluating anti-corrosion coatings

"Very easy to use. It's portable so very convenient for field testing."

Excellent instrument and company

Rating: 5.0 5 Out of 5 Stars

Organization: Pulse Biosciences Inc

Application Area: Characterize dynamic tissue changes

"I have been using a Gamry 600+ in various applications of bioelectrochemistry for the past 10 years. This is the best device on the market for my needs."

I am satisfied by its power but software should be improved.

Rating: 4.3 4.3 Out of 5 Stars

Organization: Korea Institute of Materials Science

Application Area: Corrosion tests

"Reference 600+ (+ Softwares and Accessories) Overall + Hardware is very powerful - Softwares (Framework & Echem Analyst) should be improved Pros. + Very satisfying specification (No competitor in Pstat/Gstat/Impedance Analyzer) + Compactness + Electrodes and cells are also satisfying + Basic functions, script, and sequence wizard is very powerful + South Korean vendors (Won-A Tech) are always ready to help Cons. - Relatively expensive compared to other Pstats (But it is reasonable). - Framework & Echem Analyst(EA) need improvements to user interface 1. Setting up save file location is not intuitive. 2. In EA, when I open multiple data, the load data windows always shows designated folder. It should show the latest open folder for better convenience. 3. During EIS analysis, saved equivalent circuits does not appear in a fitting window. 4. Graphical user interface should be improved."

Excellent impedance!

Rating: 4.7 4.7 Out of 5 Stars

Organization: Universidad Carlos III de Madrid

Application Area: Electrochemical corrosion in concrete, organic coatings

"It allows us to easily get results at low frequencies due to the impedance of the equipment. This is great when using organic coatings and steel coupons embedded in mortar/concrete."

I already have three of them, since it is an excellent piece of equipment.

Rating: 5.0 5 Out of 5 Stars

Organization: Universidad nacional Autonoma de Mexico

Application Area: Corrosion evaluation of coatings

"Easy to use, reliable and good sensitivity. The ability to model using any computer is great."

Great product for lab use.

Rating: 4.3 4.3 Out of 5 Stars

Organization: PowerTech Water

Application Area: Analyze carbon electrodes

"Software is easy to use and the customer service Gamry offers is exceptional. Everyone I have every spoked to has been extremely knowledgeable about the product and electrochemistry."

Good instrument.

Rating: 4.7 4.7 Out of 5 Stars

Organization: Fda

Application Area: Electrical sStimulation of bacterial biofilms

"Gamary Ref 600+ is a great product and I am happy with it and still at the early stages of exploring the equipment and its capacities."

Gamry potentiostats are great. I started with one and now own six.

Rating: 5.0 5 Out of 5 Stars

Organization: University of Canterbury

Application Area: Electrocatalysis and flow battery analysis

"Gamry potentiostats are very nice instruments. Easy to use (especially via sequencer) and produce very high quality data. Since my first G750, I now have 2x Ref600+, 2x Ref3000 and 2x Interface1000. I especially like the additional I/O connector which I use to control extra equipment (light / shutters for photoelectrochem, pumps for flow batteries etc). I also like being able to measure cell/compliance voltage simultaneously with working-reference potentials. The online support is brilliant - the application notes are very useful- especially info like checking impedance of reference electrodes."

Excellent quality & service.

Rating: 5.0 5 Out of 5 Stars

Organization: PPG-Whitford

Application Area: Coatings analysis

"Gamry was outstanding in service and after sales training. We use this instrument to better our knowledge of our coatings and speed up development time. They help take the mystery out of the science of EIS."

Excellent equipment!

Rating: 4.3 4.3 Out of 5 Stars

Organization: Aalto University

Application Area: Supercapacitor, batteries

"Excellent equipment. Reliable results. Excellent technical support especially from Dan. It's used everyday."

Great reliable results

Rating: 4.3 4.3 Out of 5 Stars

Organization: Utdallas

Application Area: Electrochemical measurement

"Gamry potentiostat is a very useful tool we use in the lab. They have a nice technical support team. Good value for money. Very versatile"

EIS is one of the important methods for coating performance evaluation

Rating: 4.7 4.7 Out of 5 Stars

Organization: A Plus Coating Solutions Inc.

Application Area: Testing coating impedance

"The instrument is easy to use. I used the instrument to determine the impedance of the applied coating sample. The instrument is stable and the result is reliable."

Great equipment

Rating: 4.3 4.3 Out of 5 Stars

Organization: Shawcor

Application Area: Analyzing coating impedance

"The software and instruction was easy to follow and straight forward to understand. However, Gamry could have provided more tutorial and background knowledge of each of the functions of the machine"

Reference 600+. Definitely worth the investment in terms of cost.

Rating: 5.0 5 Out of 5 Stars

Organization: Binghamton University

Application Area: CURE. CV, CA, and EIS

"In terms of performance, this instrument has produced reproducible and accurate results. The potentiostat and software are easy to use (I've trained 30 freshmen to work independently on this device for a CURE. CV, CA, and EIS). We've had good luck with all aspects of the instrument's constant use for the past year. Definitely worth the investment in terms of cost."

Great equipment.

Rating: 5.0 5 Out of 5 Stars

Organization: Rio de Janeiro State University

Application Area: Corrosion

"The equipment is very reliable. However, I have a technical problem and the representatives in Brazil solved it quickly."

Good results

Rating: 5.0 5 Out of 5 Stars

Organization: UA

Application Area: Electrochemistry, semiconductors, sensors, impedance

"The measurement was easy and reliable."

Superb potentiostat

Rating: 5.0 5 Out of 5 Stars

Organization: Acibadem University

Application Area: Electropolymerization, biosensor fabrication

"It is a user-friendly and reliable instrument for all kinds of electroanalysis. I have been using Gamry potentiostats since 2002 and have never had a problem."

Good results! Easy to use!

Rating: 5.0 5 Out of 5 Stars

Organization: Arcelormittal

Application Area: Corrosion

"It came in a good package. I didn’t have much experience with potentiostats but it was easy to setup and get started. After sales support was also good. With Gamry notes and webinars I could run various potentiostatic and potentiodynamic tests. I was primarily comparing corrosion resistance of different coated steels. The data is easy to view. Testing programs can be easily built. A lot is self-explanatory. I would buy it again."

Great equipment for a corrosion laboratory.

Rating: 4.3 4.3 Out of 5 Stars

Organization: UERJ

Application Area: Corrosion, materials science

"The software is simple and the results are very stable and reliable. I recommend this brand of equipment."

Great equipment - easy to use and calibrate.

Rating: 5.0 5 Out of 5 Stars

Organization: University at Buffalo

Application Area: Corrosion measurements in reinforced concrete structures

"I have used Gamry Reference 600+ to perform electrochemical corrosion measurements during my Ph.D. dissertation. This device is an accurate piece of equipment, which is super easy to setup and use. There is a lot of useful information available on the Gamry website to learn how to work with the device and the Echem Analyst software. It's also very easy to calibrate. I just faced one problem with the cable (the connection got damaged) and Gamry support team immediately gave me a new cable for free. Very satisfied with the equipment and the service at Gamry! Keep it up Gamry!"

Designed to measure impedance

Rating: 4.3 4.3 Out of 5 Stars

Organization: Pamukkale University

Application Area: Impedance for conducting polymers

"I characterized conducting polymer by impedance spectroscopy. I am using Gamry Reference 600 potentiostat. I am so satisfied with the results."

Reviews provided by SelectScience