Spherical power: -25.00 m -1 - +22.00 m -1。
Cylindrical power:-10.00 m -1 - +10.00 m -1。
Cylindrical axis:0º - 180º
PD measurement: 10mm - 85mm
Corneal radius:5mm - 10mm (KRseries)
Corneal diopter:67.50 m -1 - 33.75 m -1 (KRseries)
2Measurement increments（step）
Spherical power (step):0.12 m -1/0.25 m -1
Cylindrical power (step): 0.12 m -1/0.25 m -1
Cylindrical axis (step): 1º
PD measurement (step): 1mm
Corneal radius (step): 0.01mm(KR series)