EEG Headsets
Clean. Fast. Mobile
DSI 4
The DSI-4 is a complete, research-grade wireless dry electrode EEG system designed for rapid application of 4 dry electrode EEG sensors on the forehead. This unique fully-integrated wireless EEG system is embedded in a comfortable adult-sized, headband designed for use during sleep.
Self-donned and ready to record EEG in under 1 minutes
Comfortable for wearing continuously over 8 hours
Portable design suitable for light ambulation in office or lab environment
4 sensors positioned at the F7, F8, Fp1, Fp2
locations of the 10-20 International System
Continuous impedance monitoring
Bluetooth wireless transmission with sampling at 300 or 600 Hz
4-bit digital trigger input
Adjustable to fit a wide range of head sizes Description Product specifications
Description
Applications
The DSI-4’s practicality, portability, and high signal quality opens the door to taking numerous applications that require rapid and non-intrusive EEG recording. Such applications include:
Neurocience Research
Sleep Research
Meditation Training
Neurofeedback
Brain-computer interfaces
Neuromarketing
Product specifications
| Sensor Locations |
4 sensors at 10/20 locations: F7, F8, Fp1, Fp2 |
| Common-Mode-Follower |
Fz is default reference (can be changed to LE in software) |
| Ground |
Fpz |
| Amplifier/Digitizer |
16 bits, 4 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 |
4-bit input |
| Run-time |
>12 Hours |
| Wireless |
Bluetooth |
| Wireless Range |
10 m |
| Headset weight |
102 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 |
