EcoSense EC300A Conductivity Meter

The EC300A handheld conductivity instrument is part of the EcoSense® family of products. The EC300A offers convenient conductivity, specific conductance, salinity, total dissolved solids, and temperature with a super-stable, four-electrode conductivity cell for true field applications.

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Simple, affordable one-handed operation for a multitude of applications to measure conductivity, specific conductance, salinity, TDS and temperature. Available with 1, 4 or 10-meter cable lengths. Cables include the rugged, weighted probe assembly attached. The four-electrode cell is superior for conductivity performance in the field.


  • 1-year instrument, electrode and cable warranty
  • IP67 waterproof rating
  • Rugged weighted probe assembly; super-stable electrode designed for field use
  • Automatic temperature compensation
  • Low battery indicator with 500 hour battery life
  • Automatic shutoff after 30 minutes of inactivity
  • 1, 4 or 10-meter cable lengths available
  • CE compliance
  • 50 data set memory

The EC300A (gray) directly replaces the EC300 (blue). Instrument and cables ordered separately unless ordering as a kit. Kits are available as an instrument, cable (1, 4 or 10-meters), and hard-sided case. Order: EC300ACC-01, EC300ACC-04 or EC300ACC-10



Certifications IP67 Waterproof
Languages English
Measurement Range Conductivity-0 to 499.9 µS/cm, 0 to 4999 µS/cm, 0 to 49.99 mS/cm, 0 to 200.0 mS/cm Salinity-0.0 to 70.0 ppt, calculated TDS (Total Dissolved Solids)-TDS in g/L calculated; enter constant values from 0.30 to 1.00, default value 0.65 Temperature- -10 to +90°C (14 to 194°F)
Memory 50 data set reviewable memory
Multiparameter Yes
Operating Temperature 0 to 50° C (32 to 122 °F)
Parameters Measured Conductivity, Salinity, TDS, Temperature
Sampling Yes
Unit of Measure °F, mS/cm Salinity- ppt TDS-g/L Temperature- °C, Conductivity- µS/cm
User Calibratable Yes
User Replaceable Yes
Warranty 1-year instrument, probe and sensor cap
Waterproof IP67 Waterproof




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