17 inch Vision chart : Essence

Testing function:

Schober test, Worth test, Cross grid, Coincidence test, ETDRS, Stereo test, Astigmatism test, Fixation point test, Ishihara test, Cross cylinder, Red green panel,Red green balance, Contrast sensitivity

  • Mask: Opposite color,Single icon mask,Horizontal mask,Vertical mask,Red/green mask.
  • Unit: 5-Grade, Decimal,LogMAR,Snellen(ft),Snellen(M)
  • Other functions: Mirror icon,Screen saver.
  • Input voltage: AC 100~240v
  • Input frequency: 50Hz/60Hz
  • Output power: 20VA(max)
  • Output voltage: DC 12V
  • Working Temperature: +5°C+40°C
  • Relative humidity: 80%
  • Air pressure: 800hPa~1060hPa
  • Storage Temperature: -40°C?+55°C
  • Relative humidity: 93%
  • Air pressure: 700hPa~1060hPa
  • Transportation Temperature: -40°C+55°C
  • Relative humidity: 93%
  • Air pressure: 700hPa~1060hPa
  • Net weight: 2Kg

Other Information

  • Electrical Parameters: AC 100-240V / 50-60Hz / 20W
  • Weight: 2 kg (net)
  • LCD size: 17 inch XGA Panel
  • Working distance: 2m-7m (in steps of 0.1m) 6ft-24ft (in steps of 0.5ft).
  • Low vision chart: 0.6m-1.5m in step of 0.1mm
  • Remote Control: IR
  • Battery of remote control: AAA
  • LCD brightness: ?160cd/m²
  • Vision icon: E,C,Alphabet,Figure,Children