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Hydrodot, Inc.
238 Littleton Road, Suite 202
Westford, MA 01886
Office: 978-399-0206
Facsimile: 978-399-0208

General Inquiries:

The HydroDot® System

Frequently Asked Questions about the HydroDot® System


EzeNet® Headpiece


  • The EzeNet Headpiece is the key to the HydroDot EEG Application system, because it allows the technologist to place the HydroDot biosensor electrodes quickly and accurately, strictly following the International 10/20 System
  • Guaranteed for accuracy for 1 year
  • Open net design for easy access to patients’ head and electrode sites, and allows use with virtually any hair type
  • Comfortable for patients and less strenuous for EEG techs
  • More secure than individual electrodes
  • Shielded wiring reduces interference
  • Reusable, lifespan of 500+ uses
  • Fast drying, easily cleaned and disinfected fabric
  • 5 Sizes from infant to large adult based on head circumference (range: 40 to 62 cm and color-coded by size)
  • “Pedi” friendly; toddlers can even sit on mom’s lap
  • Ideal for difficult patients such as autistic children and agitated adults
  • Interface cable is compatible with any EEG amplifier headbox using standard DIN connectors
  • EzeNet wiring and Interface cable are shielded to reduce ambient noise and movement artifact
  • Made in the US with highest quality materials and standards used

HydroDot® Biosensors

Disposable HydroDot HydroGel Biosensors come in convenient packs of twenty-four, enough for one patient. They snap quickly into sockets on the EzeNet headpiece. Because they are disposable, they reduce the risk of cross-contamination.biosensors

  • Disposable pre-gelled EEG cups for EzeNet®
  • Double Injection Molded Cup
  • Proprietary conductive hydrogel that leaves minimal residue in hair
  • Ag/AgCl Electrode Contacts
  • · Low impedances
  • One year shelf life

HydroSpot® Electrodes

Disposable HydroSpots® are pre-gelled EEG electrode cups using the same propriet ary hydrogel as the HydroDot® biosensors. HydroSpots® are conveniently packaged in trays of 24. Use for special EEG requirements andhydrospot1 auxiliary EEG leads. Because they are disposable they reduce the risk of infection. Use with HydroSpot® reusable lead wires.

  • Disposable, pre-gelled Ag/AgCl electrode
  • Reusable lead wires in 48” or 60”
  • Uses same gentle, proprietary gel as HydroDots®
  • Great for newborn infants as well as EOG, EMG, and ECG recording locations
  • One Year Shelf Life


The proprietary gel formula used to reduce skin impedance and enhance EEG and ECG signal quality. Features:waveprepbx

  • Box of 24 cups
  • 8.5g Single-Use Skin Prep Gel Tubs
  • Dye free, mildly abrasive skin prep
  • Highly compatible with HydroDot® Biosensor Hydrogel
  • Compatible with ANY OTHER EEG electrode application with paste or collodion
  • Reduces risk of cross-contamination, because it is used on only one patient.