Diadem

Lightweight, wearable dry-EEG with easy-to-use setup. Designed for comfortable, reliable recordings in natural environments. Wireless connectivity and microSD card storage option.

What is included

Diadem EEG

12 dry EEG sensors covering prefrontal, frontal, parietal, and occipital areas. High signal quality and enhanced SNR through active shielding and an optimized DRL system

EEG Amplifier

Lightweight amplifier with integrated motion tracking, Bluetooth transmission, and microSD card backup storage for reliable data acquisition.

Technical specifications

Hardware

EEG Channels

EEG Channels	12 x EEG (Fp1, Fp2, AF7, AF8, F3, F4, P3, P4, PO7, PO8, O1, O2), RIF (A1) e DRL (Fpz)
Type of sensors / electronics	Dry sensors, active shielding, and optimized DRL
Head perimeter	530-610 mm

Wireless Amplifier

Sampling rate / resolution	256 SPS a 24 bit
Bandwidth	DC-40 Hz (3rd-order LPF)
Online / real-time impedance check	Yes (relative contact impedance)
Integrated sensors	Integrated IMU (9 axis): Accelerometer, gyroscope and magnetometer
Other inputs	1 x Digital Input (1 bit), 1 x Optical Trigger
Input range and noise	± 100 mV, < 1 μVRMS (0,5 – 30 Hz) a 256 Hz
CMRR / Input impedance	> >100 dB@50 Hz; >50 GΩ
Dimensions	71 x 71 x 34 mm
Weight	120 g

Data Streaming and Storage

Data transmission and range	Bluetooth 2.1 + EDR with 10 meters in direct sight
Data files	CSV, EDF
Data backup	Yes (removable microSD card, up to 8 GB, Class ≥ 10)

Power

Battery	Rechargeable LiPo battery; charging time < 3 h
Autonomy	> 8 hours
Nominal / Rated Voltage	3.7 V
Nominal / Rated Power	750 mW
Charging	Barrel plug

General

Warranty	2 years
Certifications	CE (Directive 2014/53)

Software

Bitbrain Core Research Software (included with equipment)

SennsLite	Real-time visualization, data recording, and synchronization across all Bitbrain devices. Compatible with LabStreamingLayer (LSL) for third-party real-time I/O (BCI2000, OpenVibe, NeuroPype, Medusa). Data export in CSV and EDF, compatible with common analysis softwares: Python (MNE, etc), Matlab (EEGLAB, FieldTrip, BCILAB,etc), and more.
C SDK	SDK in C for maximum performance and portability enabling Python integration. Compatible with Windows OS and Linux (x86).

Bitbrain Extended Research Tools (licensed)

SennsLab	Synchronization software for experimental design and data collection, supporting 35+ seamlessly synchronized sensor modalities including EEG, eye-tracking, and other biosignals. Compatible with third-party softwares via TCP/IP protocol. Data export in CSV.
SennsMetrics	Data analysis tool for emotional, cognitive, and behavioral metrics. Data are recorded with SennsLab, processed via SennsCloud, and analyzed and visualized in SennsMetrics.