| Description | 
            Orion Star A122 conductivity/TDS portable meter | 
        
        
            | Warranty | 
            3 year meter warranty | 
        
        
            | Model | 
            Orion Star A122 Conductivity/TDS/Temperature Portable Meter | 
        
        
            | Item Description | 
            Orion Star A122 conductivity/TDS portable meter | 
        
        
            | Includes | 
            Star A122 conductivity meter, 4 AA batteries, literature CD, printed quick start guide and meter test certificate | 
        
        
            | Range (Conductivity) | 
            0.01 µS/cm to 200.0 mS/cm | 
        
        
            | Resolution (Conductivity) | 
            0.01 μS minimum, auto ranging up to 3 significant digits | 
        
        
            | Accuracy (Conductivity) | 
            0.5% of reading ±1 digit | 
        
        
            | Range (TDS) | 
            1 to 19999mg/L | 
        
        
            | Resolution (TDS) | 
            1mg/L | 
        
        
            | Accuracy (TDS) | 
            0.5% of reading ±1 digit | 
        
        
            | TDS Factor Range | 
            Linear (0.02 to 9.99) | 
        
        
            | Compatible Probes | 
            2-cell or 4-cell conductivity sensors with built-in temperature | 
        
        
            | Temperature Compensation | 
            Linear |