• Potentiostat / Galvanostat / Impedance Analyzer
  • FRA / EIS: 10 μHz up to 1 MHz
  • 9 current ranges: 100 pA to 10 mA
  • High resolution of 0.006 % full scale range


All specifications
PalmSens usually responds to your quotation request within one business day.


Our flagship instrument, the PalmSens4, is a USB and battery powered Potentiostat, Galvanostat, and optional a Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS). The PalmSens4 has a large potential range (-5V to 5V or -10V to 10V) and current range (100 pA to 10 mA) with a high resolution and low noise. The economical PalmSens4 is a complete laboratory instrument but its compact and rugged design makes it also ideal for field work.

Available Configurations

The PalmSens4 is available with ±5V or ±10V DC-potential ranges and with different maximum frequencies for FRA / EIS. The following table shows the applicable product codes:

 DC-Potential Range of ±5V
DC-Potential Range of ±10V
NO EIS [F0]PS4.F0.05PS4.F0.10
EIS up to 100 kHz [F1]PS4.F1.05PS4.F1.10
EIS up to 1 MHz [F2]PS4.F2.05PS4.F2.10


Standard included with a PalmSens4:

  • Rugged carrying case
  • High quality, double shielded cell cable with
    2 mm banana connectors for Working, Counter, Reference electrode and Ground
  • Crocodile clips
  • Dummy cell
  • USB cable
  • Manual and Quick Start document
  • PSTrace software for Windows



Voltammetric techniques

  • Linear Sweep Voltammetry (LSV)
  • Differential Pulse Voltammetry (DPV)
  • Square Wave Voltammetry (SWV)
  • Normal Pulse Voltammetry (NPV)
  • AC Voltammetry (ACV)
  • Cyclic Voltammetry (CV)
  • Fast Cyclic Voltammetry (FCV)

Technique as a function of time

  • Chronoamperometry (CA)
  • Pulsed Amperometric Detection (PAD)
  • Multiple Pulse Amperometry (MPAD)
  • Fast Amperometry (FAM)
  • Zero Resistance Amperometry (ZRA)
  • Multistep Amperometry (MA)
  • Mixed Mode (MM)

Galvanostatic techniques

  • Linear Sweep Potentiometry (LSP)
  • Chronopotentiometry (CP)
  • Multistep Potentiometry (MP)
  • Open Circuit Potentiometry (OCP)

Electrochemical Impedance Spectroscopy (EIS / GEIS)

Available in Potentiostat and Galvanostat mode

  • Frequency scan
  • Potential scan / Current scan
  • Fixed potential
  • Time scan

Measurement Specifications

PalmSens4 configurationPS4.F#.05PS4.F#.10
Potential range:-5 V to +5 V-10 V to +10 V
Step potential:0.076 mV to 250 mV0.076 mV to 250 mV
Pulse potential:0.076 mV to 250 mV0.076 mV to 250 mV


dc-potential range± 10 V (or ± 5 V) *
compliance voltage± 10 V
maximum current± 30 mA (typical)
max. acquisition rate150,000 data points/s
Potentiostat (controlled potential mode)
applied dc-potential resolution76.3 µV
applied potential accuracy≤ 0.1% ± 1 mV offset
current ranges100 pA to 10 mA (9 ranges)
current accuracy≤ 0.1 % (at Full Scale Range)
measured current resolution0.005 % of current range (5 fA on 100 pA range)
0.0025% of 10 mA range
Galvanostat (controlled current mode)
current ranges1 nA to 10 mA (8 ranges)
applied dc-current range± 6 times applied current range
applied dc-current resolution0.0076% of applied current range (<10 mA)
0.0038% of 10 mA range
measured dc-potential resolution78.13 μV at ± 10 V
7.813 μV at ± 1 V
0.7813 μV at ± 0.1 V
measured dc-potential accuracy≤ 0.05% or ±1 mV (for |E| < ±9 V)
≤ 0.2% (for |E| ≥ ±9 V)
FRA / EIS (impedance measurements)
frequency range10 μHz to 1 MHz (or 10 μHz to 100 kHz) *
ac-amplitude range1 mV to 0.25 V rms, or 0.6 V p-p
GEIS (galvanostatic impedance measurements)
frequency range10 μHz to 100 kHz (or 10 μHz to 100 kHz)
ac-amplitude range0.001 x CR to 0.4 x CR (<10 mA)
0.001 x CR to 0.2 x CR (10 mA)
electrometer amplifier input> 1 TΩ // 10 pF
bandwidth1 MHz
housing aluminium with rubber sleeve: 15.7 x 9.7 x 3.5 cm3
weight +/- 500 g
temperature range0 ºC to + 50 ºC
power supplyUSB or internal LiPo battery
communication USB and Bluetooth (Dual Mode)
battery time> 16 hours idle time
> 4 hours with cell on at max. current
Extendable by means of power bank
internal storage space8 GB
or +/- 800000 measurements incl. method info (assuming 200 data points per measurement)
Auxiliary port (D-Sub 15)
analog input± 10 V, 18 bit
analog output0-10 V, 12 bit (1 kOhm output impedance)
4 digital outputs0-5 V
1 digital input0-5 V
I-out and E-outraw output of current and potential
E-out ± 10 V (1 kOhm output impedance)
i-out ± 6 V (1 kOhm output impedance)
power5 V output (max. 150 mA)

*depending on PalmSens4 hardware configuration


EIS Contour Accuracy Plot


PSTrace for Windows

PSTrace for Windows provides support for all techniques and device functionalities. With a smooth simple interface, showing only the applicable controls, PSTrace is suitable for all levels of user experience. Functions include:

  • Equivalent Circuit Fitting
  • Scripting for running an automated sequence of measurements
  • Open your data in Origin and Excel with one click of a button
  • Save all available curves, measurement data and methods to a single file
  • Browse measurements on PalmSens4’s internal storage
  • Direct feedback on method parameters

Dowload PSTrace on

PStouch app for Android

PStouch is an app for Android devices that can be used with all PalmSens and EmStat potentiostats. PStouch communicates with your potentiostat directly via USB or wirelessly using the PalmSens Bluetooth dongle. A Bluetooth dongle is available for your older and your newest PalmSens.


Get PStouch from the Google Play Store: