Sensit BT

Handheld and wireless dual-channel potentiostat

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

Description:

The Sensit BT is perfect for electrochemical sensor applications. The sensit BT connects via Bluetooth to your smartphone or tablet. From there you can control it is using the Android app PStouch. You can use the USB-C port to charge the sensit BT or connect it to a normal USB port on your PC. From there you can control it using the PStrace software .

Dual-Channel and Bipotentiostat:

The Sensit BT.SPE can be used for running sequential measurements on two different Screen-Printed electrodes (SPE’s) with their own Rerference, Counter and Working electrodes.

The second channel can be used in Bipotentiostat mode, which would be functioning as the second Working electrode versus the reference and the counter electrode channel 1. Both the channels will be recorded at the same time in the Bipoentiostat mode.

The Sensit BT.SNS has a lead connected to the WE of channel 2 and this can be used out of the box for BiPoentiostat measurements.

Two Versions:

Sensit BT.SPE

Sensor Pitch – 2.54 mm

Electrode Connections – RE, WE, CE

Allowed Sensor Thickness – Between 0.1mm and 0.8mm

Maximum sensor width – 11mm

Sensit BT-SNS

Cable Length – 40cm

Connectors – 2mm banana

Electrode Connections – RE, WE, WE2, CE

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 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.
General 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 [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 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
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
Electrometer
Electrometer amplifier input > 1 TΩ // 10 pF
Bandwidth 250 kHz
Instrument
Power USB / battery
Communication USB (type C) and Bluetooth (Classic and BLE)
Dimensions 75 x 55 x 23 mm (excl. cable)
Weight 75 g
Battery life 12 hours at max. power consumption Full charge in < 3 hours
Auxiliary port No
Storage memory 500 MB for storing up to 16 million datapoints

Software:

PSTrace for Windows:

PSTrace for windows provides support for all techniques and device functionalities. It is suitable for all levels of user experience as it has an easy to use interface.
  • 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
 

PSTouch app for Android:

  • PStouch is compatabile with the Sensit BT