DFRobot Gravity - analog sensor of TDS, purity of water for Arduino

Analog TDS sensor compatible with Arduino, it is used for measuring the hardness and the purity of water. It can be used to test the quality of water in households, hydroponic farms and others. TDS (Total Dissolved Solids) indicates how many substances was dissolved in one liter of water. The higher the TDS value, the more substances the water contains, therefore it is more polluted. The sensor is measuring the TDS in the range of 0 ppm to 1000 ppm. It is powered with the voltage from 3.3 V to 5.5 V.

The kit includes a waterproof probe for measuring TDS. The device is easy to use but it is unable to transmit data for controlling and analyze the water quality online. The device is powered with the voltage from 3.3 V to 5.5 V so it is compatible with 3.3 V or 5 V boards, for example,Arduino.

Attention!

• the probe cannot be used in water with the temperature above 55 ℃
• the probe cannot be installed too close to the edge of the container, it can cause incorrect reading of the TDS
• waterproof is only the probe, the remaining elements can't have a contact with water

• Input voltage: from 3.3 V to 5.5 V
• Output voltage: 0 V to 2.3 V
• Working current: 3 to 6 mA
• Measuring range TDS: from 0 ppm to 1000 ppm
• Measurement accuracy TDS:± 10% F. S. (25 ℃)
• The number of needles of the probe: 2
• Probe length: 83 cm
• Probe color: black
• Other: waterproof probe
• Connector of the module: PH2.0-3Pin (Gravity)
• Connector of electrode and probe: XH2, 54-2Pin
• Module dimensions: 42 x 32 mm

• 1x analog sensor TDS
• 1x waterproof probe
• 1x cable Gravity

• The website of the manufacturer of DFRobot SEN0244
• User manual
• Scheme
• Dimensions
• Documentation of CD4060BM96
• Documentation of LMV324A-SR