The Parker Hannifin Sentinel H-218B is a highly reliable hydraulic temperature sensor and switch engineered for precise temperature monitoring and protection in industrial hydraulic systems. Manufactured with a heavy-duty brass hexagonal body, this sensor is built to withstand harsh operating environments while preventing system overheating. It features a threaded cartridge-style mounting end equipped with an adjustment stem for accurate thermal control, alongside a side connection port protected by a durable cap. As a core component of the Parker Sentinel Line Protection series (Part Number M7103380), the H-218B delivers exceptional durability and safety for critical fluid power applications.