Ecosense EC30A Pen, Sensor & Accessories

YSI EC30A Conductivity/TDS/Temperature Accurate, Economical Pen-Style Measurement The EcoSense ® EC30A pen-style instrument provides an ultimate feature set over similar competitive models. The EC30A features an easy-to-use interface, simple one-hand operation and low cost of ownership over the life of the product.



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The easy, user-replaceable electrode ensures the instrument is always ready for use. The EC30A measures conductivity, TDS and temperature with the following features:

  • IP67 waterproof housing
  • 1-year instrument warranty
  • Automatic temperature compensation
  • User-replaceable electrodes
  • 1- or 2-point calibration
  • Clear, easy-to-read display with on-screen instructions
  • Selectable units of measure for conductivity, TDS and temp
  • Selectable or auto-raning for conductivity or TDS
  • “Hold” feature locks readings on display
  • >200 hour battery life; low battery indicator
  • Last calibration GLP record

With a one-year instrument and electrode warranty, the EC30A will fit your needs for an easy-to-use conductivity, TDS and temperature instrument. The EC30A is a reusable pen-style instrument. The electrode cap is easy to replace while keeping the instrument. No throw-away instrument here!

Parameters: Conductivity Total Dissolved Solids Temperature


  • Aquaculture
  • Aquariums
  • Surface water
  • Agriculture
  • Hydroponics
  • Wastewater

Manufacturer Specifications 

Product Part Number Description Compatible With  Additional Notes
Pen Only YSI30A EC30A Conductivity, TDS, Temperature Pen Tester
YSI606114 Sensor Kit, EC30A, Grey EC30A Sensor only
YSI605118 RP, Battery Kit, Pen All EcoSense pens 4 batteries
YSI580 Carrying Case, Pens, Soft-sided pH10A, ORP15A, EC30A