Features: - By using three-core chip to make it be power saving and durable is the further evolution of circuit design. - The new pressure sensor is with the better temperature and oil resistant and high accuracy. - All sensor connectors are waterproof design which can pass the signal accurately. - With the new series function, could be easily installed and time saving. - Functions: self-diagnosis on start-up or shut-down, sensor interruption self-diagnosis, peak value recording, warning. - Equipped with high-performance thin stepping motor within 270° at resolution of 3240 steps. - Adopts high illumination LED: uniform illumination, long life cycle, high stability and good user recognition.