DFRobot Gravity: Analog TDS Sensor/ Meter for Arduino

The DFRobot Gravity: Analog TDS Sensor/Meter for Arduino measures the TDS (Total Dissolved Solids) level in water, indicating the amount of soluble solids in one liter of water. The sensor outputs an analog voltage signal proportional to the TDS level, which can be read by an Arduino or other compatible controllers. The sensor uses an AC excitation source to prevent probe polarization, enhancing the longevity and stability of the probe.

Analog TDS Sensor

• Avoid External Electrical Noise: Keep the sensor away from high electrical interference to prevent signal disruption.,
• Do Not Disassemble: Avoid disassembling the probe or sensor module as it might affect the waterproofing and sensor integrity.

• Use Correct Voltage: Ensure to operate the sensor within the 3.3V to 5.5V range to avoid any damage.,
• Check Waterproofing: Utilize the waterproof nature of the probe for long-term immersion in water.,
• Regular Calibration: Regularly calibrate the sensor to maintain accuracy, especially when used in varying water qualities.

• Description: The sensor can measure TDS levels from 0 to 1000 ppm. Measurements outside this range may not be accurate.

• Description: The sensor must be operated within a voltage range of 3.3 to 5.5 VDC to ensure proper functionality and avoid damage.

• Description: Connect the TDS sensor to an Arduino board using the provided PH2.0-3P interface for the module and XH2.54-2P for the electrode. Ensure connections are secure and correct to prevent any data transmission errors.

The dimensions of the TDS sensor module are 42mm x 32mm.