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EmStat3+ Module

Research grade single-channel potentiostat module for high power

  • Small tested & calibrated potentiostat module
  • Compliance voltage ±8 V
  • Maximum current ±100 mA
  • Development SDK available
PalmSens usually responds to your quotation request within one business day.


The EmStat3+ is a research grade potentiostat that was initially developed for OEM purposes. The EmStat3+ is a reliable and versatile potentiostat that found it’s way to the market in many  different forms. 

The EmStat3+ module is successfully integrated in devices for specific applications, but also in our own product range that we sell for generic research purposes such as the EmStat Blue, EmStat Go and MultiEmStat. The main difference between the EmStat3 and EmStat3+ is the extra current range of 100 mA for the EmStat3+ module.

When only one module is added in the basket we will quote the EmStat3+ Starter Kit which includes all the components you  need for rapid prototyping and hardware validation.


Voltammetric techniques

  • Linear Sweep Voltammetry (LSV)
  • Cyclic Voltammetry (CV)

Pulsed techniques

  • Differential Pulse Voltammetry (DPV)
  • Square Wave Voltammetry (SWV)
  • Normal Pulse Voltammetry (NPV)
Stripping modes
The voltametric and pulsed techniques can all be used in their stripping modes which are applied for (ultra-) trace analysis.


Amperometric techniques

  • Chronoamperometry (CA)
  • Zero Resistance Amperometry (ZRA)
  • Chronocoulometry (CC)
  • MultiStep Amperometry (MA)
  • Pulsed Amperometric Detection (PAD)
  • Multiple-Pulse Amperometric Detection (MPAD)

Galvanostatic techniques

  • Open Circuit Potentiometry (OCP)
Missing a technique? Find it in our cross-reference list


The EmStat module features:

  • 9 embedded common electrochemical techniques
  • options for manual cell control (potentials, changing current range and timing)
  • USB and serial communication or USB as Virtual COM port
  • automatic current ranging
  • digital I/O for peripheral control (stirrer or valve)
  • analog input for measuring auxiliary input like temperature
  • analog output for controlling peripherals like a stirrer
  • multiplexer control

EmStat3 and EmStat3+ are also available as stand-alone instrument for research or OEM evaluation.

EmStat version: 3 3+
dc-potential range ± 3.000 V ± 4.000 V
compliance voltage ± 5 V ± 8 V
dc-potential resolution 0.1 mV 0.125 mV
dc-potential accuracy 0.2 % 0.3 %
current ranges 1 nA to 10 mA (8 ranges) 1 nA to 100 mA (9 ranges)
maximum current ± 20 mA typical
and ± 15 mA minimum
± 100 mA typical

The current is measured using a zero resistance ammeter (ZRA).

current resolution 0.1% of current range, 1 pA at lowest current range
current accuracy (deviation) ≤ 1 %of current range at 1 nA
≤ 0.5 % at 10 nA
≤ 0.2 % at 100 nA to 100 uA
≤ 0.5 % at 1 mA, 10 mA and 100 mA
all with max. 0.2 % offset error
electrometer amplifier input       > 100 Gohm // 4 pF
rise time     approx. 100 μs
power ES3: 5V, max. 130 mA
ES3+: 5V, max. 500 mA
external I/O options analog: 1 input and 1 output
both 0 V- 4.096 V
digital: 4 in/output lines
max. rating: -0.3 V to 5.3 V
PCB dimensions ES3: 51.5 x 34 mm
ES3+: 55 x 41 mm
Read more


Develop software for PC, smartphone or microcontroller

Whether you want to write a simple or advanced Windows application, develop an Android or iPhone app or integrate the EmStat in your own hardware, you can do it with our Software Development Tools and code examples.


Overview of software development tools

Software Development Kits for .NET

The PalmSens Software Development Kits (SDKs) for .NET can be used with any of our instruments or OEM potentiostat modules to develop your own software. The SDK’s come with a set of examples that shows how to use the libraries.

PalmSens SDKs with examples are available for the following .NET Frameworks:

  • WinForms
  • WPF
  • Xamarin (for Android)
  • UWP

SDKs for .NET


Name Type Last updated
EmStat3 communications protocol The EmStat3 and EmStat3+ communications protocol for OEM for firmware v7.6documentation28-09-20
EmStat3+ module description documentation14-09-20
EmStat3 module dimensions Drawing with dimensions of EmStat3 PCB (PDF) documentation11-08-20
Embedded SDK for EmStat3 An example project of how to use the SDK is provided for Arduino. It's made in "Arduino Software (IDE)" found at "". For more information about the example, read the comments in "EmStatSDKExample.ino". A short explanation with an example of how to use the SDK in any c/c++ environment can be found in PSComm.h. The Arduino example should also be easy to port to C or C++, if required. For more advanced use beyond the scope of the SDK, refer to the "EmStat communication protocol##.pdf".software09-04-20
Bluetooth module for EmStat3 OEM Describes how to use the Bluetooth module for EmStat3 OEMapplication-note09-04-20
EmStat3 series description documentation08-04-20
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