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TPI-390 TDS/Salt Meter
TPI-390 TDS/Salt Meter
Our Price: $139.95

Product Code: TPI-390

Description Specifications
Measure Total Dissolved Solids (TDS), salt and temperature for food, water quality and HVAC maintenance.
  • Easy-to-read LCD display
  • Measures temperature, TDS concentration and salt levels in solutions

Data Sheet

Instruction Manual

390 Specifications

Salt Measurement

Range: 0.01% to 5.0%

Resolution: 0.01% / 0.1%

Temperature Range: 32F to 158F (0C to 70C)

TDS Measurement

Range: 0 to 999ppm (mg/L)

Resolution: 1ppm (mg/L)

Accuracy: 3% full scale @ 20C

Temperature Range: 32F to 104F (0C to 40C)

Temperature Measurement

Range: 32F to 212F (0C to 100C)

Accuracy: 2F (1C) (32F to 158F / 0C to 70C)

Power Supply

LR44 or LR1154 Button Battery (x3)


0.65? x 1.25? x 10.03? (16.4mm x 32mm x 255mm)


2oz (57g) including button batteries

390 TECH Tips

Switching Between Celsius and Fahrenheit on the 390

  1. Press the ON/OFF key.
  2. Press and hold down the HOLD/CAL key for approximately 3 seconds until a beep is heard.
  3. Release the HOLD/CAL key after the beep. The F annunciator will be displayed.
  4. Repeat the steps above to change back to Celsius.

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