ISSN(Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology (An ISO 3297: 2007 Certified Organization) Vol. 5, Issue 12, December 2016 Copyright to IJIRSET DOI:10.15680/IJIRSET.2016.0512102 20691 Low Cost Sensor Network for Real Time Water Quality Measurement System Priyanka N. Bande 1 , S.J.Nandedkar 2 PG Student, Department of Electronics & Tele-communication Engineering., Maharashtra Institute of Technology Aurangabad., Maharashtra, India 1 Assistant Professor, Department of Electronics & Tele-communication Engineering., Maharashtra Institute of Technology Aurangabad., Maharashtra, India 2 ABSTRACT: Human body contains about 80% of water hence, every man need water as important factor to sustain life on earth. So, quality of such highly consumed water became an important issue. As improved water quality is favorable for health so every possible effort should be made in that direction. For identifying the quality of consumed water in house a sensor based system is explained in this paper. This system detects the water quality by measuring various physical and chemical parameters of water such as turbidity, pH, temperature, conductivity and TDS (total dissolved solid) on real time basis. This system also displays the measured values on LCD for proper understanding as well as on wireless GUI for remote monitoring purpose. This will help to know the water quality at consumer level. This system consists of electrochemical and optical sensors arranged in an array so that all the parameters are detected at the same time. The sensors are interfaced with PIC controller and Zigbee CC2500 module is used for wireless data transferring. The system is very reliable & can work for a long time. It also helps to reduce the manpower which in turn reduces the expenditure on workers salary. KEYWORDS: PIC controller, Zigbee, Water quality analysis, Turbidity, pH, TDS, LCD, wireless GUI etc.… I.INTRODUCTION Water is essential for life. Drinking water, also known as potable water or improved drinking water is water that is safe to drink or to use for food preparation, without risk of health problems. Globally, in 2012, 89% of people had access to water suitable for drinking [11]. Nearly 4 billion had access to tap water while another 2.3 billion had access to wells or public taps [11] 1.8 billion people still use an unsafe drinking water source which may be contaminated. This can result in various water related diseases such as diarrhoea, cholera and typhoid among others. Water quality refers to the chemical, physical, biological, and radiological characteristics of water [12]. Usually measured parameters of water are temperature, turbidity, pH, conductivity, dissolved oxygen (DO) and total dissolved solid (TDS).Water related diseases increases day by day which cause 3.4 million deaths a year, mostly among children. Since there are many efforts made by government but still many people do not have access to improved water sources. This is due to unawareness in public and administration and the lack of water quality monitoring system which creates serious health issues. As water is the most important factor for all living organisms it is necessary to protect it and water quality analysis is first step taken towards it [4]. Water quality analysis is process in which various parameters ate tested generally using lab instruments which are the traditional method. Intraditional method, water parameters are detected by collecting samples manually and then send them to the well-equipped laboratories for further analysis where the testing equipments are stationary and samples are provided to the testing equipments. But this is a manual method with a tedious process and it has many disadvantages. It requires too much manpower and material resource. It is a time consuming process which has various limitations like sample collecting, aging of experiment equipment. Hence it is less reliable and has disadvantages like lack of real time water quality information and it does not have any on field monitoring mechanism. In order to overcome above mentioned disadvantages there is need to have autonomous, low cost, reliable and flexible water quality measurement