Series 1300

Unmatched Technology & Value

Our ALPHA OMEGA INSTRUMENTS™ Series 1300™ oxygen deficiency monitor is a digitally controlled instrument with a measuring range of 0-30%. Oxygen values are displayed to the nearest tenth of a percent on a high contrast front panel liquid crystal display (LCD).   The monitor is housed in a resilient polycarbonate, wall-mountable general-purpose enclosure. Standard input power to the Series 1300 is 90-264 VAC, 47-63 Hz. and 18-36 VDC powered systems are available.

The eloquence of the Series 1300 is its simple operation, as well as its ease of expandability. Included are four individually adjustable Form C alarm relays, each rated at 10 amps (250 VAC). The Series 1300 can be programmed to provide a maximum of nine individual alarm events. Two scalable analog outputs (4-20 mADC and 0-20 mADC) are standard, as is RS-232 serial communications. Each Series 1300 includes an internally mounted audible alarm rated at 85 decibels (nominal) as well as visual alarm indicators. 

The Oxygen Deficiency Monitor Series 1000 has been replaced with the Series 1300 Oxygen Deficiency Monitor. 


The Series 1300 can be equipped with a local oxygen sensor and/or up-to two remote sensors. The sensors featured in the Series 1300 are extended life electrochemical oxygen sensors designed with a proprietary Enhanced Electrolyte System (EESTM) that extends the life expectancy of the sensor to years instead of approximately 12 months typical of most “fuel cell type” sensors.  The oxygen sensors in the Series 1300 are designed with open diffusers eliminating the need to use sample pumps.  We back each Series 1300 oxygen sensor with a full three-year warranty. Users can expect sensor life well beyond 5 years, helping to ensure reliable and trouble-free performance.


  • Full Three-Year Sensor Warranty: Unprecedented sensor warranty for trouble-free and cost-effective operation.
  • Multiple Sensor Operation:  Per point pricing around $1K (with 3 sensors)
  • Four Alarm Relays Standard:  Users can select a multiple of alarming functions
  • Insensitive to Air Currents:  Won’t produce erroneous oxygen readings from air movement as does high temperature zirconium oxide sensors
  • Protects from Frequent False Alarms:  Helps to alleviate false low oxygen alarms typical of fuel cell oxygen sensors
  • No sensor failures from high temperature fatigue:  When heated zirconium oxide sensors fail, often both the sensor and electronics board needs replacement-a costly proposition
  • Built-in Data Logger Standard:  Provides easy method of downloading and displaying oxygen values
  • Open sensor diffuser:  Does not require a pump for aspiration of the air


  • Measurement Range: 0 to 30%
  • Accuracy: ±​1% of full scale
  • Response Time: 90% of full scale response in < 20 seconds (nominal)
  • Sensor Type: Extended life electrochemical sensor
  • Temperature Compensation: Standard
  • Operating Temperature: 50° to 104° F (10° to 40°C)
  • Humidity: 99% maximum (non-condensing).
  • Product Warranty: Three years for both sensor and electronics
  • Calibration: Calibrated at factory with certificate of calibration


  • Display: 4 Line by 20-character LCD
  • Input Power: Universal 90 to 264 VAC, 47 to 63 Hz standard. Optional 18-36 VDC.
  • Standard Outputs: Two 0-20 mADC or 4-20 mADC, user configurable.
  • Serial Communications: RS-232 standard, RS-485 optional
  • Oxygen Alarm Relays: Four (4) SPDT form C contacts rated 10A (250 VAC) 5A (100 VDC)
  • Alarms may be cleared manually or automatically (latching), user configurable.
  • Audible Alarm: Internal audible alarm with specific alarm canceling accessible via menu


Need help?  Complete our Oxygen-Application-Questionnaire.


Need service on your oxygen analyzer?  No problem.   We are ready to assist you with any technical or service-related inquiries.  Just complete our Oxygen Monitor RMA.

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A Cost-Effective, Reliable Oxygen Deficiency Monitor with an Extended Life Electrochemical Sensor 

Process Insights_Series 1300 Oxygen Monitor


  • Aerospace/Govt.
  • Bioreactors
  • Bio-Research
  • Bulk Industrial Gases
  • Chamber/Glove Box Manufacturers
  • Chemical
  • Chemical Storage
  • Combustion Control
  • Electrical Transformers
  • Fertilizers
  • Fiber Optic Research
  • Landfill

  • Light Bulb Manufacturers
  • Medical
  • Metal/Heat Treating
  • Nuclear & Nuclear Recovery
  • Petrochemical
  • Pharmaceutical
  • Plastics
  • Power Generation
  • PSA & VPSA Processes
  • Research Labs
  • Semiconductor & Ceramics
  • Specialty Gases
  • Synthetics
  • Veterinary Medicine


Americas +1 713.947.9591
EMEA +49 69 20436910
China/APAC +86 400 086 0106

Our Oxygen Monitors 

Series 1000™

Series 1300 replaces the Series 1000
Series 1300 replaces the Series 1000

Series 3000™

ALPHA OMEGA INSTRUMENTS™ Trace Oxygen Analyzer 0-1 PPM to 0-10,000 PPM
Process Insights_Series 3000 Oxygen Monitor

Series 3500/3510™

ALPHA OMEGA INSTRUMENTS™ Trace Oxygen Blind Transmitter 0-10 PPM to 0-20,000 PPM
Process Insights_Series 3500 Oxygen Monitor

Series 3500/3510™ EX

ALPHA OMEGA INSTRUMENTS™ Trace Oxygen Blind Transmitter Explosion Proof 0-10 PPM to 0-20,000 PPM
Process Insights_AOI_35003510 Explosion Proof Transmitter

Series 3520™

ALPHA OMEGA INSTRUMENTS™ Portable Battery-Operated Trace Oxygen Analyzer
Process Insights_Series 3520_oxygen monitor

ZRO 2000™

ALPHA OMEGA INSTRUMENTS™ Trace Zirconia Oxygen Analyzer PPM to 100%
Process Insights_AOI ZRO 2000 oxygen analyzer


ALPHA OMEGA INSTRUMENTS™ Percent Oxygen Analyzer 0-100% and 0-25%
Process Insights_AOI-OXY-SEN oxygen analyzer

Series 2000™

ALPHA OMEGA INSTRUMENTS™ Percent Oxygen Analyzer 0-1 to 0-100%
Process Insights_AOI_Series 2000 oxygen analyzer

Series 2500/2510™

ALPHA OMEGA INSTRUMENTS™ Percent Oxygen Transmitter 0-2% to 0-100%
Process Insights_AOI_ Series 2510-Percent-Oxygen-Transmitter

Series 2520™

ALPHA OMEGA INSTRUMENTS™ Portable Percent Oxygen Analyzer 0-5, 0-10, 0-25, 0-50, and 0-100%
rocess Insights_AOI_Series 2520 portable oxygen analyzer
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Questions? We’re here to help.