The NAKAKITA SEISAKUSHO NS975M-2 is a robust Junction Box (J/B) Monitor designed for demanding industrial and marine applications. Housed in a durable metal enclosure, it serves as a critical interface for tank monitoring and gauging systems. This device processes sensor data and transmits a standardized 4 ~ 20 mA DC output signal, ensuring seamless integration with various control and monitoring systems. A key feature is the integrated silica gel moisture indicator, which provides a clear visual cue for maintenance, helping to protect the internal electronics from humidity and ensure long-term reliability and operational safety.