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Handheld and wireless dual-channel 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)
- Can be used without PC or smartphone connection
The Sensit BT is ideal for electrochemical sensor applications. The Sensit BT connects via Bluetooth to your smartphone or tablet and controlled via the Android app PStouch. You can use the USB-C port to charge the Sensit BT or connect to a classic USB port on your PC and control the Sensit BT via our PC software PSTrace.
The Sensit BT supports most common electrochemical techniques, including Cyclic Voltammetry, Square Wave Voltammetry and Impedance Spectroscopy (FRA/EIS).
|Sensor pitch||2.54 mm||Cable length||40 cm|
|Electrode connections||RE, WE, CE||Connectors||2 mm banana|
|Allowed sensor thickness||Between 0.1 mm and 0.8 mm||Electrode connections||RE, WE, WE2, CE|
|Maximum sensor width||11 mm|
Dual-channel and Bipotentiostat
The Sensit BT.SPE can be used for running sequential measurements on two different Screen-Printed Electrodes (SPE’s) each with their own Reference, Counter and Working electrodes.
The second channel can also be used in Bipotentiostat mode, functioning as second Working Electrode versus the Reference and Counter electrode of channel 1. Both channels are recorded simultaneously in the Bipotentiostat mode.
The Sensit BT.SNS has a lead connected to the WE of channel 2 and can be used out-of-the-box for BiPotentiostat measurements.
On-board data storage
The Sensit BT is equipped with 500 MB internal storage memory.
Save measurements on-board as a backup. Or pre-program the device with a script and use the trigger button to run and store measurements: no need to connect a PC or smartphone. Browse and transfer all internally stored measurements back to the PC easily using PSTrace for Windows.
The Sensit BT 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|
|Full dc-potential range||-1.2 to +2 V||-1.7 to +2 V||-1.7 to +2 V|
|Dynamic dc-potential range ||2.2 V||1.2 V||2.6 V|
|Compliance voltage||-2.0 to +2.3 V |
|Maximum current||± 3 mA|
|Max. acquisition rate
 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.
 The compliance voltage is the maximum potential between Working and Counter electrode and depends on the selected mode.
|Potentiostat (controlled potential mode)|
|Channels||BT.SPE: 2 channels both with WE, RE and CE
BT.SNS: WE, RE, CE and WE2
|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,
200 uA, 1 mA,
|100 nA, 1 uA,
6 uA, 13 uA,
25 uA, 50 uA,
200 uA, 1 mA,
|Current accuracy||< 0.5 % of the selected
< 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|
|Electrometer amplifier input||> 1 TΩ // 10 pF|
|Power||USB / battery|
|Communication||USB (type C) and Bluetooth (Classic and BLE)|
|Dimensions||75 x 55 x 23 mm (excl. optional cable)|
|Battery life||12 hours at max. power consumption
Full charge in < 3 hours
|Storage memory||500 MB for storing up to 16 million datapoints|
|EIS Accuracy Contour Plot|
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 validation of method parameters
- Equivalent Circuit Fitting
- Automated peak search
- Scripting for running an automated sequence of measurements
- Open data in Origin and Excel with one click of a button
- Browse measurements on PalmSens4’s internal storage
PStouch works with all our single channel and multiplexed instruments. PStouch functions include:
- Setting up and running measurements
- Analysing and manipulating peaks
- Sharing data directly via e-mail, Dropbox, or any other file sharing service
- All files compatible with PSTrace
Software Development Kits
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:
- Xamarin (for Android)
Application Note (3)
|Vitamin C Detection with ItalSens IS-C This application note describes how to create a calibration for quantitative measurements of vitamin C. Due to the detailed description and harmless solutions this an excellent electrochemical experiment with liquids for beginners in the field of electrochemistry.||27-01-21|
|Limitations for EIS on EmStat Pico||18-12-20|
|Connect SensitBT to Bluetooth This application note describes various ways to connect the portable SensitBT to Bluetooth. To connect using Android you can use PSTouch, in Windows you can use PSTrace or MethodSCRIPT. In iOS you can use MethodSCRIPT.||10-11-20|
MethodSCRIPT code examples
MethodSCRIPT code examples include:
Every code example comes with a "Getting Started" document.