Development kit for the SAM solid-state digital liquid level sensor (DL series). The sensor has no moving parts and no open ports, so it does not clog, jam, or fail the way float sensors do — rated life exceeds 10 years. Each unit combines level detection at 1.68" (42.7 mm) resolution with dual integrated temperature sensors, reporting over an I²C digital interface. Chemically-inert construction suits water tanks through chemical storage. Four standard lengths run from 19.25" to 69.5", with custom lengths available for production orders. The kit includes a Digital Level Development (DLD) interface unit, C libraries, and sample code — integration typically takes hours, not weeks. Applies to replacing float systems or upgrading analog sensors where accuracy, lifespan, and zero maintenance matter. Development Kit Includes Solid-state digital level sensor (DL series) Digital Level Development (DLD) interface unit Complete C libraries and sample code I²C communication protocol documentation Integration guide and technical specifications Mounting hardware kit Key Development Features I²C digital interface (100–400 kHz) 4KB NVRAM with user-accessible storage Integrated dual temperature sensors Factory calibration data included Real-time operational feedback Programmable status indicators Technical Specifications Resolution: 1.68" (42.7 mm) steps Power: 5 V DC,