TDS / pH / EC Continuous Controller – HM Digital Hydromaster (HM-500)

TDS / pH / EC Continuous Controller – HM Digital Hydromaster (HM-500)

TDS / pH / EC Continuous Controller – HM Digital Hydromaster (HM-500)


The HM Digital Hydromaster (HM-500) is a state-of-the-art TDS (Total Dissolved Solids), pH, and EC (Electrical Conductivity) continuous controller designed for accurate and reliable water testing. This innovative device is perfect for various applications, including hydroponics, aquariums, pools, and spas.


  • Real-time monitoring: The Hydromaster provides continuous and accurate readings of TDS, pH, and EC levels in water, allowing users to maintain optimal water quality.
  • Easy-to-read display: The large LCD screen displays all the essential information clearly, ensuring easy monitoring and analysis.
  • Automatic temperature compensation: The built-in temperature sensor automatically adjusts the readings based on the water temperature, ensuring precise measurements.
  • High-quality probes: The Hydromaster comes with durable and reliable TDS, pH, and EC probes that provide accurate and consistent results.
  • Calibration function: The device allows for easy calibration of the probes, ensuring accurate readings at all times.
  • Alarm function: The Hydromaster features an alarm system that alerts users when the water parameters go beyond the desired range, allowing for immediate corrective actions.
  • Data logging: The device can store and recall up to 20 sets of data, making it convenient for tracking water quality changes over time.


  • Accurate water testing: The Hydromaster provides precise measurements of TDS, pH, and EC levels, ensuring optimal water conditions for plants, fish, and other aquatic organisms.
  • Time-saving: With its continuous monitoring capability, the Hydromaster eliminates the need for manual testing, saving time and effort.
  • Cost-effective: By maintaining proper water quality, the Hydromaster helps prevent potential issues such as nutrient deficiencies, pH imbalances, and algae growth, saving money on corrective measures.
  • User-friendly: The device is designed with simplicity in mind, making it easy for both beginners and experienced users to operate and understand.
  • Durable construction: The Hydromaster is built to last, with high-quality materials that can withstand the rigors of regular use.
  • Versatile: The device is suitable for a wide range of applications, including hydroponics, aquaponics, fish farming, and water treatment.

Experience the convenience and accuracy of the HM Digital Hydromaster (HM-500) – the ultimate TDS, pH, and EC continuous controller for water testing.