The Endress+Hauser Liquisys COM253 Dissolved Oxygen Transmitter is a compact field device designed for water, wastewater, utilities, and fish farming applications. This 4-wire transmitter features a graphic display and 1-channel transmitter input for dissolved oxygen sensors.

The transmitter includes temperature sensing with display and current output, providing complete measurement information. Communication options include 0/4-20mA analog output, HART, and Profibus protocols for flexible integration into control systems. The PC/ABS housing is suitable for field installation.

The COM253 is well-suited for wastewater treatment plants, water treatment facilities, drinking water monitoring, surface water monitoring in rivers, lakes, and sea, fish farming operations, and trace measurement in boiler feedwater applications. Its CSA General Purpose approval ensures reliable operation in industrial environments.