TDS Conductivity & NTC Temperature Water Sensor Probe
TDS Conductivity & NTC Temperature Water Sensor Probe
TDS Conductivity & NTC Temperature Water Quality Sensor Probe
Monitor your water quality with precision using this TDS Conductivity + NTC Temperature Measurement Water Sensor. Built from durable plastic and SUS316 stainless steel, this compact probe delivers accurate real-time readings of total dissolved solids (TDS) and water temperature — making it an essential tool for hydroponics, aquariums, water filtration systems, and general water quality testing.
With a wide measuring range of 0–9990 ppm and a temperature-sensing NTC thermistor rated at 10K, this sensor integrates easily into DIY electronics projects, automation systems, and monitoring setups. Its low operating current (<50µA) and broad operating voltage (0–24V) make it highly versatile for hobbyists and professionals alike.
Key Features
- Probe Diameter: 9.5 ± 0.2 mm
- TDS Electrode Material: SUS316 stainless steel
- Measuring Range: 0–9990 ppm (mg/L)
- Resolution: 1 mg/L
- Accuracy: ±2%
- Insulation Resistance: >50 MΩ
- Medium Temperature Range: 0–99°C
- Working Temperature: 0–120°C
- Operating Voltage: 0–24V DC
- Working Current: <50µA
- NTC Thermistor: 10K
- Material: Plastic + Metal (SUS316 electrode)
- Package Includes: 1 × TDS Conductivity + NTC Temperature Sensor Probe
Ideal Applications
- Hydroponics & aquaponics water monitoring
- Aquarium water quality testing
- Home water filtration and purification systems
- DIY electronics and Arduino/Raspberry Pi projects
- Industrial and laboratory water quality monitoring
- Irrigation water quality checks
For more information on water quality standards and safe drinking water guidelines, visit the U.S. Environmental Protection Agency – Ground Water and Drinking Water resource.
Note: Due to variations in computer monitor settings, actual product color may differ slightly from images shown.
Frequently Asked Questions
Q: What does this TDS conductivity and NTC temperature water sensor measure?
A: This sensor measures two key water quality parameters: Total Dissolved Solids (TDS) — indicating the concentration of dissolved substances in water (range: 0–9990 ppm with ±2% accuracy) — and water temperature via a built-in NTC 10K thermistor. This dual-function capability makes it ideal for hydroponics, aquariums, filtration systems, and DIY monitoring projects.
Q: What voltage and current does this water sensor require to operate?
A: The sensor operates on a wide voltage range of 0–24V DC and draws a very low working current of less than 50µA, making it energy-efficient and compatible with a broad range of microcontrollers including Arduino, Raspberry Pi, and other embedded systems.
Q: What materials are used in the probe construction?
A: The probe body is constructed from durable plastic with a SUS316 stainless steel TDS electrode. SUS316 is a high-grade, corrosion-resistant steel commonly used in aquatic and industrial environments, ensuring longevity and stable readings over time. The probe diameter is 9.5 ± 0.2 mm.
Q: Is this sensor suitable for continuous immersion in water?
A: Yes. The sensor supports a medium temperature range of 0–99°C and a working temperature range of 0–120°C, with an insulation resistance greater than 50 MΩ, making it suitable for sustained use in water monitoring applications. Always ensure electrical connections remain dry and protected from moisture.