This is a KR 3000 in working condition .
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Canon RK-F1 Autorefractor Keratometer
Excellent working conditions
Dioptric measurement range of -30D to +22D
With a press of the start button, it automatically completes the entire series...
Potec PRK-7000 Autorefractor Keratometer + Free WA Diagnostic Set
The Potec PRK 7000 Autorefracto Keratometer allows you to measure the refraction and keratometry in sequence, and the results can...