E+H ENDRESS+HAUSER Dissolved oxygen transmitter Liquisys COM253
Liquisys COM253 is a compact field transmitter for dissolved oxygen measurement.

Dissolved oxygen transmitter
Liquisys COM253

Compact field device for water, wastewater, utilities and fish farming


  • Measuring principle

    Amperometric oxygen measurement

  • Application

    Water, Waste water, process, fish farming

  • Characteristic

    4-wire transmitter with graphic display.

  • Design

    Dissolved oxygen transmitter in a field housing made of PC/ABS for COS31/41/71.

  • Material

    PC/ABS-housing

  • Dimension

    247x170x115mm
    (9.63x6.63x4.48inch)

  • Temperature sensor

    Display and current output.

  • Input

    1-channel transmitter.

  • Output / communication

    0/4-20mA, Hart, Profibus.

  • Certificates, declarations and approvals

    CSA Gen. Purpose.