B-Alert X24 EEG System 24 Channel Wireless EEG Headset

DESCRIPTION

B-Alert X24 applies all sensors of the standard International 10-20 system simultaneously for efficient set-ups while also providing every subject a comfortable and individualized fit. Featuring the same high-quality signals as Stat X24 though labeled for non-medical applications, the system enables quantitative analysis techniques such as single-trial ERPs, LORETA/sLORETA, functional connectivity, and global brain assessments. All hardware is readily reusable with easy cleaning for repeated recordings in high throughput studies. From biomarker development to neurorehabilation, B-Alert X24 is enhanced by a suite of robust softwares to make this the most versatile wireless-EEG system available.

Features

• 20 channels of high-quality EEG, plus 4 optional channel for ECG, EMG, or EOG (24 Channels @ 256Hz)
• Comfortable and non-intrusive; sets up in about 20 minutes
• Automated wireless impedance checks
• Enhanced ESU-MC Bluetooth wireless range up to 20 meters
• 8+ hour rechargeable battery life
• On-board accelerometer to quantify head movement and position
• Data quality monitoring and feedback
• Multiple options for data synchronization
• Sizing to fit adolescent (age 6) through adult heads
• SDK fully compatible with MatLab, EEGLab, BCI2000, qEEG, and many neurofeedback packages

Specifications

• Channels
  • 20 EEG with fixed gain referenced to linked mastoids 4 optional 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 GO
• Noise
  • ~ +2 µV @ 10 Hz and 50 kO impedance @ 256 s/s
• 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 XSeries Bluetooth – USB dongle
• Data transmission range
  • ~ 10 meters, line of sight with onboard antenna
• Transmission power
  • Bluetooth Class 2 +4dBm; or with ESU-MC Bluetooth Class 1
• System power consumption
  • ~ 70 mA @ 3.7 V
• Battery capacity
  • SStandard 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 run time
  • 6 hrs in Bluetooth wireless mode 16 hrs in SD card mode
• 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/Amber
• Frequencies Detected
  • Delta, Theta, Alpha, Beta, Gamma, and High Gamma

  Software

• Compatibility
  • Windows 8, 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 ERPs sensor strip
  • Fz, F1, F2, F3, F4, Cz, C1, C2, C3, C4, CPz, Pz, P1, P2, P3, P4, POz, Oz, O1, O2
• qEEG Standard Medical Montage sensor strip
  • 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; inquire about other sizes
• Electrode cream
  • Highly conductive electrolytes and preservatives in non-ionic, hypoallergenic base, buffered to skin pH