| Cat. No. | R09-105-201-R | 
  
    | Model | RFM990 | 
  
    | Range | RI | 1.30 ~ 1.70 | 
  
    | Resolution | 0.0001 or 0.00001 (Selectable) | 
  
    | Accuracy | ¡¾0.0001 or ¡¾0.00002 (Selectable) | 
  
    | Sugar % | 0 ~ 100 | 
  
    | Resolution | 0.1 or 0.01 (Selectable) | 
  
    | Accuracy | ¡¾0.1 or ¡¾0.02 | 
  
    | Reading time | 4 sec | 
  
    | Measuring Temperature Range | 10¡É Below Ambient to 80¡É | 
  
    | Temperature Sensor Accuracy | ¡¾0.03¡É | 
  
    | Sample Temperature Stability | ¡¾0.05¡É | 
  
    | Interface | 1 Parallel (Printer), 2 Serial (RS232) | 
  
    | Prism / Prism Dish | Synthetic Sapphire / 316 Stainless Steel | 
  
    | Prism Gasket | Kalrez¢ç | 
  
    | Illumination | Light Emitting Diode (100,000 Hours) |