non-invasive · fNIRS · discontinued
ETG-4000
By Hitachi
Identity
- Manufacturer
- Hitachi
- Model number
- —
- Codename
- —
- Aliases
- Hitachi ETG-4000, Hitachi Optical Topography ETG-4000
- Generation
- —
- Country of origin
- JP
- Released
- —
- Announced
- —
- Discontinued
- —
- Status
- discontinued
Classification
- Invasiveness
- non-invasive
- Modalities
- fNIRS
- Primary modality
- fNIRS
- Direction
- read
- Categories
- clinical-grade, research-grade, diagnostic
- Form factor
- scalp-cap, tabletop
- Use cases
- psychiatric and developmental fNIRS research, depression / schizophrenia screening (Japan)
- Target users
- clinician, psychiatrist, neuroscience-researcher
Electrodes
- Total channels
- —
- Recording channels
- —
- Reference channels
- —
- Electrode type
- optode
- Material
- —
- 10-20 positions
- —
- Requires gel
- No
- Requires saline
- No
- Prep time
- —
- Reusable
- Yes
- Disposable
- No
Signal acquisition
- Sampling rate
- 10 Hz
- ADC resolution
- —
- Notch filters
- —
- Onboard artifact rejection
- —
Stimulation
- Capable
- No
Connectivity
- Protocols
- ethernet
- Bluetooth
- —
- Bluetooth profiles
- —
- Concurrent mode
- —
- Encryption (transit)
- —
- Pairing methods
- —
- Cloud sync
- No
- Offline recording
- Yes
Power
- Sources
- wired-mains
- Battery life (active)
- —
- Charging port
- —
- Charging time
- —
- Battery replaceable
- —
- Notes
- —
Physical
- Weight
- —
- Dimensions
- —
- Materials
- —
- Sizes
- —
- Head circumference
- —
- Operating temp
- —
Software & data
- Mobile app
- No
- Cloud platform
- No
- Offline mode
- Yes
- Subscription required
- No
- Raw data access
- Yes
- Export formats
- —
- LSL support
- —
- Data ownership
- user
- Apps
- —
SDK & developer access
- Has SDK
- No
- Open source
- No
- Languages
- —
- Web Bluetooth
- No
- Raw sample access
- Yes
- BCI paradigms
- —
- 3rd-party integrations
- —
- Docs
- —
Regulatory & clinical
- FDA status
- none
- CE mark
- —
- Certifications
- —
- Prescription required
- —
- Pediatric approved
- —
Pricing & availability
- MSRP
- —
- Current price
- —
- Subscription
- —
- Warranty
- —
- Return policy (days)
- —
- Where to buy
- —
Editor’s take
In favor
- Foundation of Japanese clinical fNIRS literature
- Multi-channel CW fNIRS
Against
- Discontinued — no new sales
- Tabletop wired unit
Sources & provenance
- NITRC — Hitachi Optical Topography listing
- Wikipedia — fNIRS overview
- Xu Cui — list of fNIRS manufacturers
Last reviewed