Gravity: Analog TDS Sensor/Meter for Arduino
We have ✅ 1 available of the DF-SEN0244 in our Sydney warehouse. An extra 519 units available with a short lead time.
The Gravity Analog TDS Sensor is an Arduino-compatible kit for measuring Total Dissolved Solids (TDS) in water. TDS indicates how many milligrams of soluble solids are dissolved per litre — the higher the value, the less clean the water. This sensor outputs a 0–2.3V analog signal that can be read by any 3.3V or 5V microcontroller.
The kit uses an AC excitation source to prevent probe polarisation and extend probe life, while maintaining stable output readings. The waterproof probe can be immersed for long-term monitoring, making it suitable for domestic water testing, hydroponics, and aquariums.
Key Features
- Wide Voltage Input – 3.3–5.5V, compatible with 5V and 3.3V controllers
- Analog Output – 0–2.3V signal, plug and play via Gravity interface
- AC Excitation – Prevents probe polarisation for longer probe life and stable readings
- Waterproof Probe – 83 cm cable with XH2.54-2P connector
- TDS Range – 0–1,000 ppm
- Accuracy – ±10% F.S. at 25°C
Specifications
- Input Voltage – 3.3–5.5V
- Output Voltage – 0–2.3V
- Working Current – 3–6 mA
- Module Size – 42 × 32 mm
- Module Interface – PH2.0-3P
- Probe Length – 83 cm
- Probe Interface – XH2.54-2P
Ideal For
- Domestic drinking water quality testing
- Hydroponic nutrient monitoring
- Aquarium water quality
Package Contents
- 1× TDS Signal Transmitter Board
- 1× Waterproof TDS Probe (83 cm)
Resources
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