You are buyding on a hardly ever used Carl Zeiss plus, complete with a touch screen and keyboard. The unit is clean, tested and is fully function and accurate. Comes with 90-day money back warranty.
The is the 4-in-1 compact system with ocular wavefront aberrometer, autorefractometer, ATLAS corneal topographer and keratometer. The fully automated measurement procedure, with easy-to-use touch screen control, enables all measurements of both eyes in approximately 60 seconds. The eyes refractive power distribution is analyzed and represented across the entire pupil aperture.
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Items are sold as-is with no returns or refunds available unless explicitly stated.