Analog TDS Sensor Water Conductivity Sensor Module Board Kit is an Arduino-compatible TDS sensor/Meter Kit for measuring TDS value of the water. It can be applied to domestic water, hydroponic and other fields of water quality testing. This TDS sensor Arduino compatible supports 3.3 ~ 5.5V wide voltage input, and 0 ~ 2.3V analog voltage output, which makes it compatible with 5V or 3.3V control systems or boards. TDS sensor kit is compatible with Arduino controllers, plug and play, easy to use.

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 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).  Its Electrode can measure conductive materials, such as suspended solids, heavy metals and conductive ions in water. The module comes with four 3.2mm fixed holes, easy to mount on any other devices. The TDS probe is waterproof, it can be immersed in water for long time measurement.

Features:

• Wide voltage operation: 3.3~5.5V
• 0~2.3V analog signal output, compatible with 5V, 3.3V two control systems
• The excitation source is an AC signal, effectively preventing probe polarization
• Waterproof probe for long-term immersion in water
• Arduino compatible, easy to connect, plug and play, no soldering required

Specifications:

TDS Sensor Module:

• 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: 83cm
• Connection Interface: XH2.54-2P
• Color: White
• Other: Waterproof Probe