Portable conductivity meter
Orion Star A122 Thermo Scientific - Scientific Instruments

• 

  Multi-parameter liquid analyzer: pH, conductivity, ORP
  Orion 5-Star Plus
  
• 

  Silica analyzer for ultra-pure water
  Orion 1817LL
  
• 

  Continuous on-line fluoride (F-) analyzer
  Orion 2109XP
  
• 

  Dissolved ammonia (NH3) analyzer
  Orion 2110XP
  
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  Sodium analyzer
  Orion 2111LL
  
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  Total nitrogen (TNb) analyzer
  TN 3000
  

pH-meters, Conductivity meters

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  Conductivity meter
  Orion Star A112
  
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  In-line conductivity meter
  Orion 2100 series
  
• 

  Digital pH meter
  Orion 2-Star
  
• 

  Laboratory measuring device: pH, ISE, conductivity
  Orion 5-Star Plus
  
• 

  Waterfproof conductivity meter
  Orion 131S
  
• 

  Portable pH meter
  Orion 3-Star
  
• 

  Laboratory basic pH-meter
  Orion 3-Star Plus
  
• 

  Laboratory pH meter
  Orion 320 PerpHecT