The Green Instruments SEN9 Oxygen Sensor (Part ID: 01258) is a highly reliable, precision-engineered replacement sensor designed for seamless integration into marine and industrial analyzer systems. This high-quality oxygen sensor features an integrated cable and connector assembly, ensuring a secure connection and a straightforward installation process. Designed to be fitted directly into a standard sensor housing or connected to an extension cable, the SEN9 delivers accurate, continuous oxygen monitoring essential for optimal emission control, safety compliance, and system performance.