Search This Site

(Search by Product Type i.e. Level or Brand Name i.e. Walchem)

AM-LDO Luminesescent Dissolved Oxygen Sensor

USA Toll Free: 1-800-730-0302 Tel: 416-240-1920 -

AM-LDO Luminesescent Dissolved Oxygen Sensor

Aquametrix has been selling polarographic dissolved oxygen analyzers for over three decades. We are now pleased to be able to offer an optical dissolved oxygen sensor that outputs directly a 4-20 or Modbus signal. Optical DO sensors offer advantages over electrochemical DO sensors in that they are inherently self-referencing, require no warm-up period, do not require flow and are less affected by fouling.

Maintenance is trivial. The sensor cap lasts for an industry leading 3 years or longer and is inexpensive to replace. The body is corrosion resistant and designed to stand up to the harsh environment of wastewater.

No sensor on the market packs as much into one small package. Plug into your PLC or computer and you’re ready to measure.


  • No moving parts

  • Very rugged

  • Instantly stable values

  • Calibrated in the factory with calibration data stored in sensor

  • Direct output via 4-20 mA or Modbus.

  • Only 1 replaceable part - sensor cap.

  • Not affected by CO2 or H2S

  • Economically Priced


  • Wastewater treatment

  • Sewage

  • Boilers

  • Fish farms

  • Aquaculture

AM-LDO Datasheet
AM-LDO Manual



About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


Our Products

Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

Website Content

Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

Get in Touch