Nơi xuất xứ
Guangdong, China
Vertex distance(VD)
0.0mm,12.0mm,13.75mm
Spherical surface
20.00~+20.00(VD=12) 0.12/0.25 steps
Cylinder(CYL)s
0.00~±8.00D 0.12D/0.25D step
Printer
Built-in printer thermo-sensitive linearity printer
Data records
three times' records per eye
Pupil distance(PD)
45~85mm , 1mm steps
Key words
optical equipment refractomet
Product name
refractometer
Application
Optometry Eye Testing