zeller alm-500 auto lensmeter with printer

1. The ISO-standard green LED measurement light, wavelength of 545nm, measurement of the lens no need any number of settings ABBE, make measurement more rapid, stable and accurate.
2. The measurement of cluster area, so that access to data more accurate and reliable.
3. Automatically identify the type of the lens, automaticlly switch measurement mode, more convenient measurement of multi-focal lenses.
4. Accurately measure the transmittance of 10% of the colored lenses.
5. 4.7 in. color LCD screen, clearly display and high resolution.
6. Built-in high-speed thermal printer.
7. Quick measurements into a mirror monocular and binocular pupillary distance, accuracy 0.5mm, with precision measurement.
Specifications:   
Sphere: measuring range -25~+25D 0.01/0.06/0.12/0.25D steps  
Cylinder: measuring range -10~+10D 0.01/0.06/0.12/0.25D steps 

Axis measuring range 0° ~ 180° 1°  
Add measuring range -10~+10D 0.01/0.06/0.12/0.25D steps  
Prism measuring range 0.00~15.00Δ  0.01Δ  
PD 40mm~85mm, 0.5mm steps  
UV transmissivity 1%~100%  1% or 5% steps 
Lens diameter dia 20mm~100mm  
Display 4.7" LCD  
Power supply AC(110V~220V)±10%:50/60HZ  
Maximum power 40W  
Machine Dimensions 194mm×210mm×408mm  
Net Weight 3.6kg