Water Quality TDS Sensor Probe with 3m Cable
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Prices updated: 13 Oct 2026
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About this product
A TDS probe with a 3-metre cable for measuring total dissolved solids in water. TDS readings are given in milligrams of dissolved solids per litre, and the probe is used for checking domestic water and hydroponic solutions.
Specifications
- Measures
- Total dissolved solids (TDS)
- Unit
- mg per liter (ppm)
- Probe cable length
- 3 m
Frequently asked questions
What does a higher TDS reading mean?
A higher TDS value means more soluble solids are dissolved in the water, so the water is generally less clean. The acceptable range depends on the application.
Can I connect this probe directly to a microcontroller?
The listing does not specify the output interface. Check whether the probe needs a separate TDS meter circuit board before wiring it to an Arduino or ESP32.
