Introduction
Gravity: Analog TDS Sensor/Meter for Arduino is an Arduino-compatible TDS Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. TDS meter can be applied to domestic water, hydroponic and other fields of water quality testing.
TDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved in one liter of water. In general, the higher the TDS value, the more soluble solids dissolved in water, and the less clean the water is. Therefore, the TDS value can be used as one of the references for reflecting the cleanliness of water.
(Cited from Google)
For this application, we have launched an analog TDS sensor kit that is compatible with Arduino, plug, and play, easy to use. Matching with Arduino controller, you can build a TDS detector easily to measure the TDS value of liquid.
This tds sensor supports 3.3 ~ 5.5V wide voltage input, and 0 ~ 2.3V analog voltage output, which makes it compatible with a 5V or 3.3V control system or board. The excitation source is an AC signal, which can effectively prevent the probe from polarization and prolong the life of the probe, meanwhile, increase the stability of the output signal. The TDS probe is waterproof, it can be immersed in water for a long time measurement.
Attention:
1.The probe can not be used in water above 55 degrees centigrade.
2.The probe can not be left too close to the edge of the container, otherwise, it will affect the reading.
3.The head and the cable of the probe are waterproof, but the connector and the signal transmitter board are not waterproof. Please be careful.
Monitor TDS trends from 0 to 1000ppm after calibration. TDS alone cannot determine whether water is safe to drink and does not identify bacteria or specific contaminants. The probe may be immersed as documented; keep the signal board and connector dry. Temperature compensation requires a separate temperature measurement. Raspberry Pi projects also need an appropriate ADC.
Features
- Wide Voltage Input: 3.3~5.5V
- Good Compatibility Output: 0~2.3V analog signal output, compatible with 5V or 3.3V controller
- AC Excitation Source: effectively prevent the probe from polarization
- Waterproof Probe
- Easy to Use: Arduino compatible, simple connection, plug, and play without soldering
Specification
Signal Transmitter Board
- Input Voltage: 3.3 ~ 5.5V
- Output Voltage: 0 ~ 2.3V
- Working Current: 3 ~ 6mA
- TDS Measurement Range: 0 ~ 1000ppm
- TDS Measurement Accuracy: ± 10% F.S. (25 ℃)
- Module Size: 42 * 32mm
- Module Interface: PH2.0-3P
- Electrode Interface: XH2.54-2P
TDS probe
- Number of Needles: 2
- Total Length: 83cm
- Connection Interface: XH2.54-2P
- Color: Black
- Other: Waterproof Probe
Shipping List
- Analog TDS Meter for Arduino x1
- Waterproof TDS Probe x1
- 3Pin Analog Sensor Cable x1