EEG Headsets
Clean. Fast. Mobile
DSI 24
The DSI-24 is a research-grade wireless dry electrode EEG headset designed for rapid application of 21 sensors at locations corresponding to the 10-20 International System. Its main features include:
Self-donned and ready to record EEG in under 5 minutes
Comfortable for wearing continuously over 8 hours
Portable design suitable for light ambulation in office or lab environment
21 sensors positioned according to the 10-20 International System
Continuous impedance monitoring
Bluetooth wireless transmission with sampling at 300 Hz
Hot-swappable Li-ion batteries allow continuous operation
8-bit digital trigger input
Adjustable to fit a wide range of head sizes (52-62 cm in circumference)
Description
Applications
The DSI-24’s practicality, portability, and high signal quality opens the door to taking numerous applications that were previously limited to lab environments to more naturalistic settings. Such applications include:
Neurofeedback
Neuroergonomics
Neuroeconomics / Neuromarketing
Augmented Cognition
Brain-Computer Interfaces
Biometrics
Cognitive Stress or Workload Monitoring
Psychological Research
Sports Peak Performance Training
Child-Sized Version: DSI-24-C
The DSI-24’s practicality, robustness to motion artifacts, high signal quality, and unsurpassed comfort beckoned for a version suitable for children.
And, thus, by popular demand, we have developed a smaller version of our DSI-24: The DSI-24-C, which is designed to comfortably and accurately position the dry sensors on heads 48-54 cms in circumference, thus fitting >90% of male children 3-7 years of age, and >90% of females 4-9 years old. (The DSI-24 optimally fits 54-62 cm)
This unit is thus an excellent complement to a DSI-24, or can be purchased separately, as the child-sized version is a stand-alone unit, and includes its own integrated amplifiers, digitizers, and 19 sensors on the head at the International 10/20 System locations, as well as 2 removable ear clips and 1 auxiliary input for ECG/EMG/EOG.
Product specifications
| Sensor Locations |
21 sensors at 10-20 locations: Fp1, Fp2, Fz, F3, F4, F7, F8, Cz, C3, C4, T7/T3, T8/T4, Pz, P3, P4, P7/T5, P8/T6, O1, O2, A1, A2 |
| Common-Mode-Follower |
Pz is default reference (can be changed to LE in software) |
| Ground |
Fpz |
| Amplifier/Digitizer |
16 bits, 24 channels |
| Analog/Digital Resolution |
0.317 uV referred to input |
| Analog/Digital Converter |
16 bits |
| Sample |
300 Hz (600 Hz option) |
| Bandwidth |
0.003-150 Hz |
| Gain |
60 |
| Common Mode Rejection Ratio |
>120 dB |
| Channel Cross-Talk |
< -70 dB with sensors |
| Input Impedance (1Hz) |
47 Gohm |
| Input Bias Current |
<25 pA |
| DC Offset Tolerance |
+/-200 mV |
| Maximum Input Range |
10mV pk-pk |
| Noise (1-50Hz) |
<3 uV peak-peak |
| Digital Inputs |
8-bit input |
| Run-time |
Continuous (hot-swappable batteries) |
| Wireless |
Bluetooth |
| Wireless Range |
10 m |
| Headset weight |
~600 g |
| Headsize Fit |
52-62 cm circumference |
| Headset |
Fixed sensors on spring-loaded arms and pods for sensor support |
| Notice |
* Specifications subject to change, please contact us to obtain latest specifications |
