The OI-7530 is an explosion-proof WireFree secondary controller engineered for seamless integration with the Otis Instruments WireFree product line. Designed for hazardous environments, it supports up to 32 sensor assemblies and utilizes 900 MHz or 2.4 GHz communication to deliver reliable WireFree connectivity in demanding conditions.

Featuring Modbus RS-485 communication and integrated relay outputs, the OI-7530 enables flexible system integration and enhanced response capabilities. Its rugged, explosion-proof design ensures dependable performance across industrial safety and critical monitoring applications.