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Sensit Smart

Smartphone potentiostat

  • Capable of EIS up to 200 kHz
  • Built around the EmStat Pico module
  • Potential range -1.7 to +2 V
  • Current ranges 100 nA – 5 mA (max ±3 mA)

 

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

Description

The Sensit Smart is the world smallest ready-to-go potentiostat available on the market. The Sensit Smart can be directly inserted in a smartphone or tablet and controlled via the Android app PStouch. You can use the USB-C Female to USB-A cable to connect the Sensit Smart to a classic USB port on your PC and control the Sensit Smart via our PC software PSTrace

The Sensit Smart supports most common electrochemical techniques, including Cyclic Voltammetry, Square Wave Voltammetry and Impedance Spectroscopy (FRA/EIS).

The Sensit Smart comes with:

  • Dummy Cell (SPE version)
  • SPE to screw-terminal adapter
  • USB-C Female to USB-A cable
  • USB-C Female to Micro USB adapter
  • USB-C port protector
  • PSTrace software for Windows (activation code for my.palmsens.com)
  • PStouch app for Android (find it in the Google Play Store)

Compatible with most common Screen Printed Electrodes / Sensors

Sensor pitch: 2.54 mm
Electrode connections: RE, WE, CE
Allowed sensor thickness: Between 0.1 mm and 0.8 mm
Maximum sensor width: 11 mm

Techniques

Voltammetric techniques

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

Pulsed techniques

  • Differential Pulse Voltammetry (DPV)
  • Square Wave Voltammetry (SWV)
  • Normal Pulse Voltammetry (NPV)

Amperometric techniques

  • Chronoamperometry (CA)
  • Chronocoulometry (CC)
  • MultiStep Amperometry (MA)
  • Pulsed Amperometric Detection (PAD)

Galvanostatic techniques

  • Open Circuit Potentiometry (OCP)

Electrochemical Impedance spectroscopy (EIS)

  • Potential scan
  • Fixed potential
  • Time scan

Specifications

The Sensit Smart works at three different modes;

  • Low Speed mode: for scan rates up to 1 V/s or a bandwidth of 100 Hz.
  • High Speed mode: for high scan rates and frequencies.
  • Max Range mode: a combination of the Low and High Speed modes for optimal dynamic dc-potential range.

 

Low Speed mode High Speed mode Max Range mode
General
Full dc-potential range -1.2 to +2 V -1.7 to +2 V -1.7 to +2 V
Dynamic dc-potential range [1] 2.2 V 1.2 V 2.6 V
Compliance voltage -2.0 to +2.3 V [2]
Maximum current ± 3 mA
Max. acquisition rate
(datapoints/s)
100 1000 100
Supports FRA/EIS NO YES NO
Potentiostat (controlled potential mode)
Channels 1 (1x WE, 1x RE and 1x CE)
Applied dc-potential resolution 537 µV 395 µV 932 µV
Applied potential accuracy < 0.2% < 0.5% < 0.5%
Current ranges 100 nA, 2 uA,
4 uA, 8 uA,
16 uA, 32 uA,
63 uA, 125 uA,
250 uA, 500 uA,
1 mA, 5 mA
100 nA, 1 uA,
6 uA, 13 uA,
25 uA, 50 uA,
100 uA,
200 uA, 1 mA,
5 mA
100 nA, 1 uA,
6 uA, 13 uA,
25 uA, 50 uA,
100 uA,
200 uA, 1 mA,
5 mA
Current accuracy < 0.5 % of the selected
current range
< 2% for 100 nA current range
< 1% of the selected current range < 1% of the selected current range
Measured current resolution 0.006% of selected current range (5.5 pA on 100 nA range)
Measured potential resolution 56 uV
FRA / EIS (impedance measurements)
Frequency range 0.016 Hz to 200 kHz
Ac-amplitude range 1 mV to 0.25 V rms, or 0.708 V p-p

[1]  The dynamic range is the range that can be covered during a single scan within the full potential range. For example; a linear scan can start at -1.5 V and end at 1.1 V or vice versa, covering 2.6 V dynamic range.
[2] The compliance voltage is the maximum potential between Working and Counter electrode and depends on the selected mode.

 

Electrometer
Electrometer amplifier input > 1 TΩ // 10 pF
Bandwidth  250 kHz
Other
Power and communication USB-C
Storage 4000 datapoints on-board
Size 43 x 25 x 11 mm (excl. USB connector)
Weight 10 g
Battery No
Auxiliary port No
Sensor connector SPE (pitch: 2.54 mm)
Operation temperature range 0 °C to +40  °C

 

Software

For Windows and Android

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:

  • Direct feedback on method parameters
  • Equivalent Circuit Fitting
  • 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

Download PSTrace on my.palmsens.com

PStouch app for Android

PStouch is an app for Android devices compatible with the Sensit Smart.
PStouch communicates with your Sensit Smart directly via its USB-C port. Make sure your tablet or phone can act as USB Host (also known as USB On-The-Go).

Get it on Google Play

Software

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

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Read more about this software

Downloads

Name Type Last updated
MethodSCRIPT v1.2 protocol description MethodSCRIPT v1.2 protocol description28-04-20
MethodSCRIPT v1.1 protocol description MethodSCRIPT v1.1 protocol description17-04-20
App Note – Sensit Smart Glucose Calibration Curve This app note shows how to measure glucose concentrations using the Sensit Smart08-04-20
App Note – How to connect cables to Sensit Smart Explains how to connect cables to the Sensit Smart08-04-20
MethodSCRIPT code examples MethodSCRIPT code examples can now be found on Github
- MethodSCRIPTExample_C
- MethodSCRIPTExample_C_Linux
- MethodSCRIPTExample_C#
- MethodSCRIPTExample_Arduino
- MethodSCRIPTExample_Python
- MethodSCRIPTExample_iOS
- MethodSCRIPTExample_Android
Every code example comes with a "Getting Started" document.
08-04-20
Sensit Smart description 08-04-20

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