{"product_id":"water-level-indicator","title":"Water Level Indicator Kit","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eWater Level Indicator\u003c\/strong\u003e is a simple DIY electronics project that detects the level of water in a container or tank and provides a visual and\/or audible indication when the water reaches different levels. It is an ideal educational kit for students, beginners, and hobbyists to learn about water sensing and basic electronic circuits. Suitable for school science exhibitions, STEM education, and DIY electronics projects.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eComponents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBC547 NPN Transistor\u003c\/li\u003e\n\u003cli\u003eLED (Red, Yellow, Green)\u003c\/li\u003e\n\u003cli\u003e5V Buzzer\u003c\/li\u003e\n\u003cli\u003e1K Resistors\u003c\/li\u003e\n\u003cli\u003e9V Battery\u003c\/li\u003e\n\u003cli\u003e9V Battery Connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWorking Principle\u003c\/h3\u003e\n\u003cp\u003eThe water level indicator works by using the conductivity of water. As the water level rises and touches the sensor probes, a small current flows through the water, activating the BC547 transistor. The corresponding LEDs light up to indicate the water level, and when the maximum level is reached, the buzzer sounds to alert the user.\u003c\/p\u003e\n\u003ch3\u003eAdvantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEasy to build and operate\u003c\/li\u003e\n\u003cli\u003eLow power consumption\u003c\/li\u003e\n\u003cli\u003eVisual and audible water level indication\u003c\/li\u003e\n\u003cli\u003ePrevents water overflow\u003c\/li\u003e\n\u003cli\u003eCost-effective and reliable\u003c\/li\u003e\n\u003cli\u003eIdeal for educational and DIY projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOverhead water tanks\u003c\/li\u003e\n\u003cli\u003eUnderground water tanks\u003c\/li\u003e\n\u003cli\u003eWater storage containers\u003c\/li\u003e\n\u003cli\u003eSchool science projects\u003c\/li\u003e\n\u003cli\u003eSTEM learning\u003c\/li\u003e\n\u003cli\u003eElectronics laboratory experiments\u003c\/li\u003e\n\u003cli\u003eHome and industrial water monitoring\u003c\/li\u003e\n\u003cli\u003eDIY automation projects\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shop.ProjectX","offers":[{"title":"Default Title","offer_id":52913758470437,"sku":null,"price":0.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/7828\/0229\/files\/ChatGPTImageJul30_2026_12_51_44PM.png?v=1785396157","url":"https:\/\/shop.projectxedu.com\/products\/water-level-indicator","provider":"Shop.ProjectX","version":"1.0","type":"link"}