Eye tracking system

When evaluating eye tracking hardware, the most critical metric is the Sampling Rate (Hz); for clinical or psychological research, a rate of 250Hz to 2000Hz is required, while 60Hz to 120Hz suffices for general UX testing. You must also verify the Accuracy (0.5° or less) and Precision (0.1° or less) to ensure data reliability. Additionally, consider the Tracking Range (Head Box), which defines the allowable head movement before the system loses the signal, and ensure the device supports Dark/Bright Pupil Tracking to accommodate different lighting conditions and eye colors.

Screen-Based systems are ideal for stationary tasks like website usability testing, software interface design, and psychological experiments where the subject sits in front of a monitor. Wearable Eye Tracking Glasses are necessary for real-world environments, such as retail shopper behavior analysis, sports performance, or industrial training. Ensure the wearable version offers automatic parallax compensation and a wide field of view (FOV) for the scene camera.

The hardware is only as good as the data it produces. Ensure the system provides Raw Data Export (CSV, Excel) and supports Heatmaps, Gaze Plots, and Area of Interest (AOI) analysis. For developers, a robust SDK (C++, Python, or C#) and API integration are essential. If you are using the system for VR/AR, confirm compatibility with Unity or Unreal Engine plugins.

Since these systems use infrared (IR) light, they must comply with IEC 62471 (Photobiological Safety of Lamps) to ensure the IR emission is safe for human eyes. For the US market, FCC certification is required, while the CE Mark and RoHS compliance are mandatory for the European Union. If the device is intended for medical diagnostics, it must meet ISO 13485 standards and local medical device registrations.

Always request a Pre-Shipment Inspection (PSI) conducted by a third-party agency. For eye trackers, ask the supplier to provide a Calibration Verification Report for the specific unit being shipped. Use Made-in-China.com's Secured Trading services to ensure payment is only released after the goods pass initial quality checks.

Focus on After-Sales Technical Support rather than just the unit price. Negotiate for a minimum 2-year warranty and clarify if software firmware updates are included for free. For bulk orders, request a tiered pricing structure where the cost per unit drops significantly as volume increases, and ask for spare parts (like extra cables or nose pads) to be included.

Eye tracking systems contain sensitive optical sensors; ensure the supplier uses Anti-Static Packaging and shock-absorbent foam. Use Incoterms like FCA or FOB to maintain better control over the logistics chain. Be aware of HS Code classification (typically 9031.80) to accurately calculate import duties and avoid customs delays.

Verify the supplier's credentials on Made-in-China.com, looking for Audited Suppliers with high business scores. Avoid direct wire transfers to private accounts; always use official corporate bank accounts or the platform's secure payment gateway. Request a Proforma Invoice (PI) that clearly outlines the technical specifications, lead time, and refund policy.