| Description | As South Africans, we are very fortunate that our standard drinking water inalarge majority of the country is potable and often even tasty dependingonwhere you live. However, this is not necessarily the case for everysingleperson, and some people’s water is supplied from sources like boreholesorwater that has been tanked over long distances. This is why, despiteSA’sgreat standard of drinking water, we offer the specialised DFRobot AnalogTDSSensor for Arduino, which is an elegantly simple Electronics solutiontotesting the TDS of water to identify the overall quality of the water, aswellas its potential health effects. This Sensor Module is completely Arduino-compatible, making it anaffordablechoice, and is built to measure the Parts Per Million (Also referredto asMilligrams Per Litre) of Total Dissolved Solids in water. These solidsaretypically comprised of salts, minerals and metals like potassium,sodium,chlorides and many other “contaminants”, and in high doses theseseeminglynatural particles can actually be very dangerous. Please Note that the final image is for demonstration purposes only. TheJar,Arduino board, Sensor Shield, Display and Battery are not included withthismodule pack. Analog TDS Sensor for Arduino - Technical Specifications:| – 3.3V to 5.5V DC | – 0V to 2.3V DC | – 3mA to 6mA | – 0 to 1000ppm | – ±10% F.S (25°C) - Module: MCU Interfacing Port
| – PH2.0-3P - Module: Probe Interfacing Port
| – XH2.54-2P | – 2 | – 830mm - Probe: Connection Interface
| – XH2.54-2P | – Black | – IP67 Typical Applications for the Analog TDS Sensor:Typically, according to the standards defined by India, Europe and manyotherlocations around the globe, a TDS level of between 150 and 500 is good,withthe lower range of this spectrum being better than the higher range.However,a TDS level lower than 50ppm (Parts Per Million) can also be dangeroustohealth, as it may have a lower saturation of salt than your blood, andyourbody will have to use the electrolytes in your blood in order toproperlyutilise the water that you drink. These factors, which most of us don’t even consider throughout ourentirelives, are surprisingly important, and if you’re concerned about the TDSofthe water in your area or the source from which you’re acquiring it,thislittle module is an inexpensive solution to what could easily become abigproblem over time. In fact, we even like to use this sensor to testoutbottled water just out of curiosity, and we’ve found some interestingresults.Of course, we don’t want to bash and brands, but you may be surprisedwith theresults you find when experimenting with this unique but verybeneficialmodule. Additional Resources:- DFRobot Official Wiki for the TDS Sensor Module
- Official DFRobot Gravity TDS Sensor Library for Arduino
- TDS Sensor Module Schematic
- TDS Sensor Layout with Dimensions
- CD4060BM96 Datasheet
- LMV324A-SR Datasheet
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