Dry EEG Headsets

Clean. Fast. Mobile
The Dry Sensor Interface (DSI) series integrates QUASAR’s revolutionary dry electrode technology that acquires clean EEG signals, without the need for skin preparation or gels, and without compromising on signal quality.  The DSI EEG signals are comparable to those obtained from wet electrode systems and are resistant to electrical and motion artifacts. The DSI wireless EEG headsets are designed for speed and ease of use, comfort, and mobility in real-world environments. This world leading dry electrode technology is revolutionizing EEG use in research, neurofeedback, brain-computer interfaces, neuromarketing and more.

At A Glance

DSI 24



The DSI-24 is a research-grade wireless dry electrode EEG headset designed for rapid application of 21 EEG sensors and 3 (optional) auxiliary sensors.
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DSI 7



The DSI-7 is a research-grade wireless dry electrode EEG headset designed for ultra-rapid application. The DSI-7 offers practicality, portability…
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DSI 7 Flex



The DSI-7-Flex is a research-grade wireless EEG system designed for versatile application of up to 7 sensors at any location. The DSI-7-Flex offers flexibility, portability…
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DSI VR300



Developed in conjunction with Neurable the VR300 integrates an HTC Vive virtual reality headset with our DSI EEG System.
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Full Comparison

Applications DSI 24 DSI 7 DSI 7 Flex VR300
Neuroscience Research    
Neuromarketing  
BCI & Neurogaming  
Ergonomics & Biometrics  
Neurofeedback  
Custom Solutions  
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Specifications DSI 24 DSI 7 DSI 7 Flex VR300
Headset Ideal for long-term ambulatory use in realworld environments  Ideal for ultra-rapid use in realworld environment. Versatile user-selectable sensor locations under elastomeric cap or straps Designed for integration with HTC Vive. Ideal for P300 in VR
Sensor Locations 21 sensors at International 10/20 System locations: Fp1, Fp2, Fz, F3, F4, F7, F8, Cz, C3, C4, T3, T4, T5, T6, Pz, P3, P4, O1, O2, A1 and A2; and 3 auxiliary channels for EMG, EOG, ECG 7 sensors at the following International 10/20 System locations: F3, F4, C3, C4, Pz, P3, P4 + Linked Ears (optional location customization and ECG)  2 – 6 dry sensors in individual pods + Linked Ears 7 sensors at the following International 10/20 System locations: FCz, P3, Pz, P4, PO7, Oz, PO8 + Linked Ears
Set-up Time 3-5 Minutes  1-3 Minutes  Variable 1-3 Minutes
Sensor Type
Dry active hybrid Resistive/Capacitive, through hair and reusable
 Dry active hybrid Resistive/Capacitive, through hair and reusable Dry active hybrid Resistive/Capacitive, through hair and reusable Dry active hybrid Resistive/Capacitive, through hair and reusable
Sampling Rate 300 Hz 300-600 Hz 300-600 Hz 300 Hz
Triggers 8 bit 4 bit 4 bit 4 bit
3D Accelerometer Optional Optional Optional Optional
Communication Modes Bluetooth Wireless and Wired USB Modes. Optional On-Board Storage Bluetooth Wireless and Wired USB Modes. Optional On-Board Storage Bluetooth Wireless and Wired USB Modes. Optional On-Board Storage Bluetooth Wireless and Wired USB Modes.
Bluetooth Range 10m / 30feet 10m / 30feet 10m / 30feet 10m / 30feet
Included Software DSI-Streamer Data Acquisition Software and API DSI-Streamer Data Acquisition Software and API DSI-Streamer Data Acquisition Software and API DSI-Streamer Data Acquisition Software, API, and Unity and Unreal SDK for VR
Ambulatory Yes Yes, With Stabilization Strap  Limited Yes
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