Using a zirconia‑based sensing element, the analyzer provides high stability, long lifespan, and minimal drift, making it ideal for continuous monitoring applications. Compared to the OA‑Z‑02, the OA‑Z‑IG2 includes both analog (1,000–5,000 mV) and TTL RS‑485 outputs, offering greater integration flexibility with PLCs, DCS systems, and marine automation equipment.

The OA‑Z‑IG2 is designed for panel‑mount installation and operates on 220 VAC, making it suitable for industrial plants, burners, furnaces, inert‑gas systems, and oxygen‑monitoring applications that require reliable 0–25% O₂ measurement.

Using a zirconia‑based sensing method, the OA‑Z‑02 offers long sensor life, minimal drift, and fast response time. It is designed for panel‑mount integration and provides TTL RS‑485 digital communication, allowing easy connection to PLCs, monitoring systems, and automation panels.

Compared to the OA‑Z‑IG (which is MED‑certified for IGG systems), the OA‑Z‑02 is a general‑purpose analyzer without marine MED approvals, but with identical measurement range and accuracy. It is ideal for industrial plants, burners, furnaces, and oxygen‑monitoring systems that require stable 0–25% O₂ measurement.

Unlike the OA‑Z‑IG (0–25% O₂), the OA‑Z‑03 is optimized for environments where oxygen levels are significantly higher, making it ideal for process‑gas analysis, oxygen‑enrichment systems, and industrial safety monitoring. It operates on 12 VDC, offers ±2% accuracy, and provides both 1,000–5,000 mV analog output and TTL RS‑485 digital communication.

The OA‑Z‑03 uses a stable zirconia‑based sensing method, offering long lifespan, minimal drift, and fast response time. It is designed for panel‑mount integration and can be installed as a standalone analyzer or as part of a larger oxygen‑monitoring system.