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TPI 390a Handheld TDS/Salt Meter

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The TPI 390a can be used to determine water purity, calculate the amount of salt in food, measure salt intake, check filtration systems for inefficiency and much more.

This tester checks both the amount of salt in a liquid solution and the value of TDS (total dissolved solids) including calcium, magnesium, carbonate, chloride and nitrate in water. It can test salt content between a range of 0.01 to 5.0% and TDS values across a range of 0 to 999ppm (mg/L).

Using is simple, just clean the sensor thoroughly then place inside a solution. Use the mode function to choose what measurement you'd like and the value will be displayed on the built-in screen. This value can then be temporarily stored on the screen using the data hold button.

TPI 390A Handheld TDS/Salt Meter Key Features

  • Accurate determination of salt content and TDS in water
  • Integrated hanging ring for hands-free use
  • LCD display
  • Hold button freezes value on the screen
  • Measurement mode switch
  • Includes sensor cover

TPI 390 Technical Specifications

 Salt Measurement  Range: 0.01% to 5.0%
 Resolution: 0.01% / 0.1%
 Temperature Range: 32°F to 158°F (0°C to 70°C)
 TDS Measurement  Range: 0 to 999ppm (mg/L)
 Resolution: 1ppm (mg/L)
 Accuracy: ±3% full scale @ 20°C
 Temperature Range: 32°F to 104°F (0°C to 40°C)
 Temperature Measurment  Range: 32°F to 212°F (0°C to 100°C)
 Accuracy: ±2°F (1°C) (32°F to 158°F / 0°C to 70°C)
 Power Supply  LR44 or LR1154 Button Battery (x3)
 Dimensions  0.65” x 1.25” x 10.03” (16.4mm x 32mm x 255mm)
 Weight  2oz (57g) including button batteries
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Additional Information
SKU TPI-390a
Manufacturer Part Code 390a

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