Small wearable
amplifier system


End-of life

Per April 1st 2019 the Mobi has been declared end-of life. This means that the Mobi is not for sale anymore. If you already have a Mobi, TMSi can still repair and service your device. The end-of-life declaration has no influence on warranty terms or the expected service life of the device.

TMSi Mobi

Compact measurement system

The Mobi is a compact measurement system for electrophysiological signals such as EMG or ECG. The Mobi is also available in configrations with auxiliary inputs for active sensors such as goniometers, pressure, temperature, respiration etc.

TMSi Mobi

Active shielding technology

The Mobi has 6 input channels and has only differential inputs (bipolar). The Mobi uses Bluetooth for data transmission and, depending on the configuration has a maximum sampling rate of 2048 Hz. Mobi provides high quality data thanks to TMSi’s active shielding technology.



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  • Available in 6 bipolar and 4 bipolar + 2 auxiliary input configurations
  • Sampling rate Max 2048 Hz
  • Runs for hours on two AA batteries
  • No mains interference or movement artefacts thanks to active shielding technology
  • Simple plug and play setup with Bluetooth transmission


TMSi Polybench is a software application toolbox, a veritable blank canvas for the creation of customized configurations; from basic measurements to sophisticated research applications. The possibilities are limited only by your imagination.

TMSi Polybench can be considered a personalized “application factory” allowing the user to control the high-quality raw data input from any TMSi amplifier to build the exact system they need. Choose among TMSi Polybench pre-set functions and controls or build customized processes in pursuit of practically any conceivable desired outcome.

In research, by definition, the questions being asked have specific challenges that off-the-shelf software often cannot be adapted to meet. TMSi Polybench allows you complete freedom in design so that data collection, measurement and manipulation is completely under your direction and not limited by the design of any specific software offering or system manufacturer.

TMSi Polybench can accept input from all TMSi amplifiers.

Download TMSi Polybench

Interface for MATLAB

The TMSi MATLAB Interface is a library for MATLAB written by TMSi to interface the TMSi PC Driver to MATLAB. This interface allow you to acquire data, write and read. poly5 files via MATLAB and/or export data to EEGLAB (

Functionality that is included in the TMSi MATLAB Interface is limited to the signal acquisition part of the driver and loading data from previously recorded data in TMSi Polybench or the TMSi MATLAB Interface. All functionality needed to perform on-board memory recordings (so-called ambulatory measurement) as present in the Mobita, Mobi and Porti is NOT implemented.

The code in the TMSi MATLAB Interface is a MATLAB library for sampling TMSi devices. The goal of this library is to give an easy programmable interface to TMSi devices. It contains basic examples that should be enough to get you started.

The library provides:
• Sampling from USB, Wi-Fi, network and Bluetooth TMSi devices.
• (Limited) Real-Time plotting of sampled data.
• Directly saving sampled data to .Poly5 file format.
• Offline export of .Poly5 data to EEGLAB.
• Support for sampling using SynFi and Fusbi.

Note that TMSi does not support usage of the TMSi Interface for MATLAB.

The interface is distributed under MIT license, but can not be supported by TMSi support personnel.

Compatible with the following devices: REFA Extended, REFA, Mobita, Mobi, Porti.

Download the interface for MATLAB here

Third Party Software


OpenViBE is a software platform dedicated to designing, testing and using brain-computer interfaces. OpenViBE is free and open source software and is now compatible with TMSi amplifiers!

More info about Openvibe
TMSi Mobi

Product Package

Mobi amplifier
Carrying bag
Drivers for Windows
User Manual
Patient ground cables (1.5 m)
Patient ground wristbands

TMSi Mobi

Bipolar Cables

• Bipolar Cables for EOG, ECG, EMG, EEG
o 1x Bipolar Snap
o 1x Bipolar Micro Electrode
o 1x Bipolar Cup Electrodes for EEG

TMSi Mobi


Active sensors to complete your measurement setup.
This requires a Mobi configuration with AUX inputs.

The Mobi supports the following sensors
• 3D accelerometer
• GSR • Respiration sensor
• Temperature
• Goniometers
• Pressure sensor
• Footswitches