The B-Alert X24 is a powerful, comprehensive system for mobile neurophysiological data acquisition and analysis. Comfortable, lightweight headgear delivers real-time EEG for quantitative analyses, LORETA, BCI, neurofeedback training, single-trial ERPs, and the validated B-Alert Cognitive State Metrics. The system includes the External Syncing Unit - MultiChannel (ESU-MC) for millisecond time synchronization with other systems. From biomarker development to neurorehabilitation applications, the B-Alert X24 is the most robust medical-grade, wireless-EEG system available.
Product Features:
- 20 channels of medical-grade EEG, plus 4 auxiliary channel for ECG, EMG, or EOG
(24 Channels @ 256Hz) - Real-time delivery of the validated B-Alert Cognitive State Metrics for engagement, distraction, drowsiness, and stress
- Real-time Workload Metric
- Comfortable and non-intrusive; sets up in about 10 minutes
- Automated wireless impedance checks
- Enhanced ESU-MC Bluetooth wireless range up to 20 meters
- 8+ hour rechargeable battery life
- On-board accelerometer quantifies head movement & position
- Data quality monitoring and feedback
- Real-time access to Raw Data, Decontaminated Data, and Cognitive State Metrics
- Multiple options for data synchronization
- Sizing to fit adolescent through adult heads
- SDK fully compatible with MatLab, EEGLab, BCI2000, qEEG, and multiple neurofeedback packages
Product Specifications:
| HARDWARE | |
| Channels | 20 EEG with fixed gain referenced to linked mastoids 4 auxiliary differential channels |
| Sampling rate | 256 samples/second |
| Dynamic range | Fixed gain ±1,000 μV |
| Resolution | 16 bit, CMRR 105 dB |
| Bandpass characteristics | 0.1Hz HPF, 100Hz 5th order LPF |
| Input impedance | 100 GΩ |
| Noise | ~ +1.5 μV @ 10 Hz and 50 kΩ impedance |
| Head movement/position | Angles obtained with 3-axis 12-bit accelerometer |
| RF Band | 2.4 to 2.48 GHz (ISM band) |
| Transmission mode | Bi-Directional with B-Alert BT – USB dongle |
| Data transmission range | ~ 10 meters, line of sight with onboard antenna |
| Transmission power | Bluetooth Class 2 +4dBm; ESU-MC Bluetooth Class 1 |
| System power consumption | ~ 70 mA @ 3.7 V |
| Battery capacity | Standard 2 x Li-ION batteries - 460 mAH, 8-hours of continuous use Optional 4 x Li-ION batteries - 920 mAH, 15-hours of continuous use |
| Battery charging | Internally charged with custom cable and USB wall charger |
| On-line impedance monitoring | Initiated by host computer using bi-directional link |
| Head unit dimensions | Size: 5’(L) x 2.25” (W) x 1” (H); Weight: 0.11 kg with standard battery |
| User control | On/Off |
| Indicator LEDs | Green |
| SOFTWARE | |
| Compatibility | Windows 7 and XP, PC with 2.0 GHz or higher processor & 1 GB of RAM |
| Estimated file size per minute | ~ 45 KB/Min/channel |
| SENSOR HEADSET & ACCESSORIES | |
| Single-trial ERP configuration Medical qEEG |
Fz, F1, F2, F3, F4, Cz, C1, C2, C3, C4, CPz, Pz, P1, P2, P3, P4, POz, Oz, O1, O2 Fz, Fp1, Fp2, F3, F4, F7, F8, Cz, C3, C4, Pz, P3, P4, POz, T3, T4, T5, T6, O1, O2 |
| Sensor strip sizes | Ships with small & medium; also available with x-small and/or large |
| Electrode cream | Highly conductive electrolytes and preservatives in non-ionic, hypoallergenic base, buffered to skin pH |
B-Alert X24
Electrode sites
Electrode sites
Click to view full size (Pop-up)
Real-time GUI displays B-Alert Cognitive State gauges with timeline and EEG spectrograms
Optimized for single-trial ERP applications
The ESU-MC features serial and parallel ports for precision syncing