The ST-772 Series uses luminescent (optical) dissolved oxygen detection, avoiding the membrane replacement and electrolyte refill needed by older galvanic and polarographic DO sensors. This is the standard-body variant, suited to process and wastewater dissolved oxygen monitoring.

Output is via isolated 4-20mA analog and RS-485 Modbus for direct integration with a PLC, SCADA, or third-party controller.

Key specifications:

• Parameter: Dissolved oxygen, luminescent/optical detection
• Outputs: isolated 4-20mA analog, RS-485 Modbus
• Configuration: Standard body