ECM-231 Online PH & EC Conductivity Monitor Meter Tester ATC, Water Quality Real-time Continuous Monitoring, Rechargeable, for Aquaculture, Aquarium, Pond, Hydroponics

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The EC PH Monitor provides 24 hours continuous reading for pH & conductivity. Optimizing these critical parameters through a plants’ growing phase helps ensure a successful crop.

Designed for indoor use, this pH & EC Monitor can be mounted on a wall or hung on a support bar. Set up your reservoir, place the pH and conductivity probes in the solution, then adjust and glance!

Ideal for agricultural, horticultural and hydroponics applications where pH and EC levels need to be continuously monitored for optimal plant growth. It is compact and easy to install and use. 

The simplest and most effective reservoir monitor you could ever own!



  • Backlight and simple calibration
  • Plant-safe green LEDs
  • Large easy to read displays
  • With Self-Locking function
  • water-resistant design
  • Replaceable pH probe included
  • With Automatic Temperature Compensation


  • Range: 0.00~14.00pH / 0~19.99mS/cm
  • Resolution: 0.01pH / 0.01mS/cm
  • Accuracy: ±0.1pH / ±2%F·S
  • Temperature Compensation: 0~50°C
  • Power Supply: 6V DC (include), with Power adaptor
  • Operating Environment: 0~50°C
  • Size: 88 x 55 x 22 mm
  • Weight: 135g


  • 1 x pH & EC Conductivity Monitor with BNC port cover
  • 1 x EC Conductivity Electrode
  • 1 x pH Electrode
  • 1 x 4.003 pH Calibration Solution
  • 1 x 6.864 pH Calibration Solution
  • 1 x EC 12.88 Calibration Solution
  • 2 x Hanging Bracket
  • 1 x Metal Wire Holder
  • 2 x Velcro Tape
  • 1 x Mini Screwdriver
  • 1 x Power Adaptor 

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