EC, pH & PPM Meters

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      Professional-grade meters and calibration solutions for monitoring pH, EC, and PPM with precision — essential tools for healthy nutrient management in soil and hydro grows.

      17 products
      Bluelab 2.77 EC Conductivity Standard Solution - Reference Solution for Calibrating and Checking EC Meters - 250 ml and 500 ml
      Bluelab 2.77 EC Conductivity Standard Solution - Reference Solution for Calibrating and Checking EC Meters - 250 ml and 500 ml  (250 ml–500 ml)
      Bluelab
      $14.00–$23.00
      Bluelab Combo Meter - Portable pH, EC and Temperature Meter for Hydroponics
      Bluelab Combo Meter - Portable pH, EC and Temperature Meter for Hydroponics
      Bluelab
      $264.72
      Bluelab Combo Meter Plus with Soil pH Probe - Portable pH, EC and Temperature Meter for Soil, Coco and Hydroponics
      Bluelab Combo Meter Plus with Soil pH Probe - Portable pH, EC and Temperature Meter for Soil, Coco and Hydroponics
      Bluelab
      $349.38
      Bluelab Commercial Truncheon Nutrient Meter - Larger-Scale EC Meter for Stronger Nutrient Solutions
      Bluelab Commercial Truncheon Nutrient Meter - Larger-Scale EC Meter for Stronger Nutrient Solutions
      Bluelab
      $105.00
      Bluelab Conductivity Pen - Handheld EC, PPM and Temperature Meter for Nutrient Solutions
      Bluelab Conductivity Pen - Handheld EC, PPM and Temperature Meter for Nutrient Solutions
      Bluelab
      $88.41
      Bluelab Guardian Monitor Inline Wi-Fi - Continuous pH, EC and Temperature Monitor for Inline Dosing Systems
      Bluelab Guardian Monitor Inline Wi-Fi - Continuous pH, EC and Temperature Monitor for Inline Dosing Systems
      Bluelab
      $629.00
      Bluelab OnePen - 3-in-1 pH, EC and Temperature Pen with Bluetooth for Nutrient Solutions
      Bluelab OnePen - 3-in-1 pH, EC and Temperature Pen with Bluetooth for Nutrient Solutions
      Bluelab
      $242.01
      Bluelab OnePen Replacement Probe - Replacement pH, EC and Temperature Probe for the Bluelab OnePen
      Bluelab OnePen Replacement Probe - Replacement pH, EC and Temperature Probe for the Bluelab OnePen
      Bluelab
      $99.00
      Bluelab pH 4.0 Calibration Solution - Buffer Solution for 2-Point pH Meter Calibration - 250 ml and 500 ml
      Bluelab pH 4.0 Calibration Solution - Buffer Solution for 2-Point pH Meter Calibration - 250 ml and 500 ml  (250 ml–500 ml)
      Bluelab
      $14.00–$23.00
      Bluelab pH 7.0 Calibration Solution - Buffer Solution for 2-Point pH Meter Calibration - 250 ml and 500 ml
      Bluelab pH 7.0 Calibration Solution - Buffer Solution for 2-Point pH Meter Calibration - 250 ml and 500 ml  (250 ml–500 ml)
      Bluelab
      $14.00–$23.00
      Bluelab pH Pen - Handheld pH and Temperature Meter for Nutrient Solutions
      Bluelab pH Pen - Handheld pH and Temperature Meter for Nutrient Solutions
      Bluelab
      $99.00
      Bluelab pH Probe - Replacement Double-Junction pH Probe with BNC Connector
      Bluelab pH Probe - Replacement Double-Junction pH Probe with BNC Connector
      Bluelab
      $75.24
      Bluelab pH Probe Inline - Replacement Inline pH Probe for the Guardian Monitor Inline
      Bluelab pH Probe Inline - Replacement Inline pH Probe for the Guardian Monitor Inline
      Bluelab
      $165.68
      Bluelab pH Probe KCl Storage Solution - Storage and Hydration Solution for pH Probes and Pens - 250 ml
      Bluelab pH Probe KCl Storage Solution - Storage and Hydration Solution for pH Probes and Pens - 250 ml
      Bluelab
      $30.00
      Bluelab Probe Care Kit - Conductivity - Cleaner, Standard Solution and Accessories for EC Probes
      Bluelab Probe Care Kit - Conductivity - Cleaner, Standard Solution and Accessories for EC Probes
      Bluelab
      $19.00
      Bluelab Probe Care Kit - pH and Conductivity - Cleaners, Calibration Sachets and Accessories for pH and EC Probes
      Bluelab Probe Care Kit - pH and Conductivity - Cleaners, Calibration Sachets and Accessories for pH and EC Probes
      Bluelab
      $31.00
      Bluelab Soil pH Pen - Direct Soil, Coco and Rockwool pH and Temperature Meter
      Bluelab Soil pH Pen - Direct Soil, Coco and Rockwool pH and Temperature Meter
      Bluelab
      $179.11