SMI REDn 
Discontinued
The SMI REDn scientific is a reliable screen-based eye tracker that enables researchers to conduct fixation-based studies with a sampling rate of 30 or 60Hz. Unfortunately, this product is *Discontinued*. Please see the Smart Eye Aurora as an equivalent substitute.
The SMI REDn Scientific eye tracker is compatible with the iMotions Screen-based Eye Tracking Module.
SMI has been bought by Apple Inc. – to read what this means for the field of eye tracking, read more here.
Specifications
| Sample rate | 30 Hz or 60 Hz |
| Accuracy | 0.4° |
| Operating distance | 40 cm to 100 cm |
| Tracking range | 50 cm x 30 cm at 65 cm distance |
| Recovery time | 16 ms |
| Screen size | Use with Desktop Monitor (10” to 27”) or Laptop Display (10” to 27”) |
| Connection type | USB 3.0 |
| Dimensions | 30 cm x 2 cm x 2 cm |
| Weight | 75g |
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