• 

  DigiPol-R300 Automatic refractometer
• 

  DigiPol-R500 Automatic refractometer
• 

  DigiPol-R600 Laboratory Digital Refractometer
• 

  DO210E DO Meter
• 

  DO310F DO Meter
• 

  DO400F DO Meter
• 

  DO500T DO Meter
• 

  DO510T DO Meter
• 

  DO511T DO Meter
• 

  DO600L DO Meter
• 

  EC100B Conductivity Meter
• 

  EC110B Conductivity Meter

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