Extech EC150
Conductivity/TDS Meter

  • Units of measure include μS/cm, mS/cm, ppm, ppt, °F, and °C
  • Simultaneous display of Conductivity or TDS, plus Temperature
  • Large 3-1/2 digit (2000 count) LCD display
  • Data Hold and low battery indication, Auto Power off with disable
  • Two ranges for Conductivity and TDS with one point calibration per range
  • Adjustable Automatic Temperature Compensation
  • Waterproof design to withstand wet environment – meets IP65 standard
  • Measures Conductivity, TDS and Temperature
  • Adjustable Conductivity to TDS ratio factor from 0.4 to 1.0 - conveniently calculates the TDS value
  • Order Conductivity standards separately (required for calibration)
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Product Information
Datasheet 200 KB PDF
Manual 128 KB PDF
Click here for Information Regarding PDF'sPDF Help
  Ranges Max. Resolution Basic Accuracy
Conductivity 0 to 1999 μS/cm
00 to 19.99 mS/cm
1 μS/cm
0.01 mS/cm
±1% FS
TDS 0 to 1999 ppm
0 to 19.99 ppt
1 ppm
0.01 ppt
±1% FS
Temperature 32° to 122°F (0 to 50°C) 0.1°F/°C ±0.9°F/1°C
Power Four LR44 button batteries
Dimensions 6.5 x 1.4 x 1.3" (165 x 35 x 32 mm)
Ordering Information
Model  Description Buy Online Price
EC150 Extech EC150 Conductivity Meter Buy Now Sale $60.89
(Reg. $69.99)
Included Accessories
  • 1- Product Manual
  • 1- Protective Sensor Cap
  • 4- LR44 Button Batteries
Optional Accessories
Model  Description Buy Online Price
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*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.