TDS Meter V1.0 Module Water Quality Sensor for Arduino

TDS sensor kit is compatible with Arduino controllers, plug and play, easy to use.

Application

It can be applied to measure TDS value of the water, to reflect the cleanliness of the water.

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.

Measuring TDS Value

Measuring the TDS value in the water is to measure the total amount of various organic or inorganic substances dissolved in water, in the unit of ppm or milligrams per liter (mg/l).

Technical Parameters

• Input Voltage: DC 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 Interface: XH2.54-3P
• Electrode Interface: XH2.54-2P

TDS Probe

• Number of Needle: 2
• Total Length: 60cm
• Connection Interface: XH2.54-2P
• Color: White
• Other: Waterproof Probe

Shipping List

• TDS Meter V1.0 for Arduino x1
• Waterproof TDS Probe x1
• XH2.54-3Pin Jumper Wire x1

Test Code

#define TdsSensorPin A1
#define VREF 5.0 // analog reference voltage(Volt) of the ADC
#define SCOUNT 30 // sum of sample point
int analogBuffer[SCOUNT]; // store the analog value in the array, read from ADC
int analogBufferTemp[SCOUNT];
int analogBufferIndex = 0,copyIndex = 0;
float averageVoltage = 0,tdsValue = 0,temperature = 25;