{"product_id":"semlab-cls-24bp-contactless-liquid-level-sensor-module-5v-to-24v-capacitive-non-contact-liquid-detection-npn-pnp-output","title":"SemLab CLS-24BP Contactless Liquid Level Sensor Module - 5V to 24V, Capacitive Non-Contact Liquid Detection, NPN\/PNP Output","description":"\u003cp\u003eThe \u003cstrong\u003eSemLab CLS-24BP Contactless Liquid Level Sensor Module\u003c\/strong\u003e is a \u003cstrong\u003ecapacitive, non-invasive\u003c\/strong\u003e liquid detection solution designed to detect the presence of liquid through non-metallic container walls without direct contact with the fluid. By using capacitive sensing technology, the module can detect liquids through materials such as plastic, glass and acrylic, helping prevent sensor corrosion, contamination and degradation caused by direct exposure to liquids or chemicals.\u003c\/p\u003e\n\u003cp\u003eThe module operates from a wide 5V to 24V DC supply and provides a selectable NPN or PNP-style output, making it suitable for interfacing with PLC inputs, relays, microcontrollers and automation systems. It features an onboard sensitivity adjustment potentiometer and LED status indicator for convenient calibration. With a sensing capability through container walls up to 20 mm thick, the SemLab CLS-24BP is suitable for liquid presence detection, tank monitoring, industrial automation, chemical applications, agricultural systems and IoT projects.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cimg src=\"https:\/\/circuitdigest.com\/wiki\/wp-content\/uploads\/2026\/07\/SemLab-Contactless-Liquid-Level-Sensor-Parts-Marking.png\" alt=\"SemLab Contactless Liquid Level Sense Module Hardware Overview\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cimg src=\"https:\/\/circuitdigest.com\/wiki\/wp-content\/uploads\/2026\/07\/SemLab-Contactless-Liquid-Level-Sensor-Pinout.png\" alt=\"SemLab Contactless Liquid Level Sense Module Sensitivity Adjustment\"\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eNon-contact capacitive liquid level detection\u003c\/li\u003e\n\u003cli\u003eDetects liquid through non-metallic container walls\u003c\/li\u003e\n\u003cli\u003eWide 5V–24V DC operating voltage\u003c\/li\u003e\n\u003cli\u003eSupports selectable NPN and PNP output modes\u003c\/li\u003e\n\u003cli\u003eUp to 20 mm container-wall sensing capability\u003c\/li\u003e\n\u003cli\u003eStated liquid level accuracy of ±1.5 mm\u003c\/li\u003e\n\u003cli\u003eFast response time of ≤800 ms\u003c\/li\u003e\n\u003cli\u003eUp to 100 mA output drive capability\u003c\/li\u003e\n\u003cli\u003eBuilt-in sensitivity adjustment potentiometer\u003c\/li\u003e\n\u003cli\u003eOnboard LED for detection\/status indication\u003c\/li\u003e\n\u003cli\u003e4-pin header interface for easy connection\u003c\/li\u003e\n\u003cli\u003eCompatible with PLCs, relays, Arduino, ESP32 and other controllers\u003c\/li\u003e\n\u003cli\u003eOpen-source hardware and firmware\u003c\/li\u003e\n\u003cli\u003eSuitable for industrial automation, IoT, agriculture and chemical applications\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 352.688px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eSemLab CLS-24BP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eSensing Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eCapacitive, non-contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eDC 5V–24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eStandby Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eApprox. 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eMaximum Wall Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eUp to 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003e±1.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eResponse Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003e≤800 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eOpen-collector transistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eOutput Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eNPN \/ PNP selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eOutput Drive\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eUp to 100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003e4-pin header\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eSensitivity Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eOnboard 10kΩ trimpot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eStatus Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eLED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eMCU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eWCH CH32V003F4U6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eBare PCB \/ IP00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; text-align: center; height: 19.5938px;\"\u003e\u003cstrong\u003eSensing Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; text-align: center; height: 19.5938px;\"\u003eThrough container wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 32.8647%; height: 19.5938px;\"\u003e\u003cstrong\u003eRecommended Containers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7838%; height: 19.5938px;\"\u003eGlass, plastic, acrylic and other non-conductive materials\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePinout :\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: center;\"\u003ePin\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003eLabel\u003c\/th\u003e\n\u003cth style=\"text-align: center;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eVIN\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e5–24V DC Power Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eMODE\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eFloating = NPN \/ GND = PNP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eOUT\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eLiquid Detection Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGND\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003eGround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFor more information checkout : \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/circuitdigest.com\/wiki\/semlab-contactless-liquid-level-sensor-module\/\" rel=\"noopener\" target=\"_blank\"\u003eContactless Liquid Level Sensor Module Wiki Page\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e1 × SemLab CLS-24BP Contactless Liquid Level Sensor Module\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"QuartzComponents","offers":[{"title":"Default Title","offer_id":46169960382698,"sku":"MOD-QC6184","price":166.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0300\/6424\/6919\/files\/SemLabCLS-24BPContactlessLiquidLevelSensorModule_1.jpg?v=1786447921","url":"https:\/\/quartzcomponents.com\/products\/semlab-cls-24bp-contactless-liquid-level-sensor-module-5v-to-24v-capacitive-non-contact-liquid-detection-npn-pnp-output","provider":"QuartzComponents","version":"1.0","type":"link"}