In-Series Diagnostics (ISD) provides detailed status and performance data from each sensor in a cascade chain which can be accessed with an HMI or similar device. Single and cascade models available to protect one or multiple entry points. On-sensor LED indicator provides at-a-glance status information. Cascade up to 32 sensors in a series using a standard 4-wire cable with M12 connectors, T-adapters, and an end plug. Tamper resistance to meet the needs of any application with unique, high, and low code models. Achieves Cat 4, PL e, or SIL CL 3 safety ratings alone or in a cascade chain. Rugged, IP69 construction withstands exposure to high-pressure, high-temperature washdown. High tolerance (10 mm) to misalignment enables reliable performance in challenging industrial environments where machine vibration and impact are possible.