ODAX EDA Contact Strap - Black
Reusable hook-and-loop finger strap with Ag/AgCl skin-contact electrode and 3.9 mm snap stud interface for EDA/GSR lead connections.
Overview
The ODAX EDA Contact Strap (Black) is a reusable hook-and-loop contact strap intended to secure an Ag/AgCl electrode against the skin for electrodermal activity (EDA) and galvanic skin response (GSR) measurements. It provides a stable mechanical hold during measurement and interfaces to standard electrode leads via a snap stud connector.
Unless stated otherwise, 2 contact straps can be expected with each order.
Datasheet
Photos
Lengthwise view
Wrapped/closed view
Key Features
- Ag/AgCl skin-contact electrode surface
- Snap stud interface sized for standard 3.9 mm and 4.0 mm electrode lead connectors
- Hook-and-loop strap for finger wrapping and secure hold
- Low stud-to-contact resistance (less than 0.1 ohm)
- Reusable format for lab, research, and prototyping workflows
Applications
- EDA and GSR measurement for research and prototyping
- Psychophysiology, HCI, affective computing, and biofeedback experiments
- Wearable sensing prototypes using standard electrode lead sets
Specifications
Mechanical
| Parameter | Value | Notes |
|---|---|---|
| Strap length | 110 mm | Nominal |
| Strap width | 19.05 mm | Nominal |
| Strap color | Black | Hook-and-loop strap intended for finger wrapping |
| Electrode contact material | Ag/AgCl | Skin-contact side |
| Snap stud head diameter | 3.9 mm | For standard 3.9 mm and 4.0 mm electrode leads |
| Snap stud neck diameter | 3.5 mm | Mechanical interface to lead connector |
Electrical
| Parameter | Spec | Notes |
|---|---|---|
| Stud-to-contact resistance | < 0.1 ohm | Measured from snap stud to Ag/AgCl contact base |
Recommended Use
- Clean and dry the skin at the contact location.
- (Optional) Apply a small amount of electrode contact gel to the skin or to the electrode contact surface.
- Place the Ag/AgCl contact side against the skin.
- Wrap the strap around the finger and secure using the hook-and-loop closure.
- Connect the electrode lead to the snap stud and route the cable to minimize motion during measurement.
Notes on Contact Gel
Contact gel is recommended when skin is dry or when maximum signal stability is required. In some conditions and for some users, acceptable EDA and GSR measurements may be obtained without gel. Measurement quality depends on skin condition, pressure, motion, and the connected sensor system.
Handling and Storage
- Store in a clean, dry environment and keep the contact surface free of dust and oils.
- Do not use on broken or irritated skin. Discontinue use if discomfort or irritation occurs.
- Avoid excessive bending or mechanical stress on the snap stud.
- For cleaning guidance, validate your cleaning method for your application and environment.
Ordering Information
- SKU / Part number: ODAX-EDA-T1-100-BLK-R1
- Product family: EDA Contact Strap T1-100 Series
- Packaging: Single unit (unless stated otherwise, 2 contact straps can be expected with each order)