Dual Gas

Etco2 and anesthetic gas monitoring module

Bionet’s Dual Gas is a EtCO2 and anesthetic gas monitoring module that features IR light source with optical bandpass filtering technology with zero calibraiton.


  • Low Cost, Durable, and Proven Side-stream Technology
  • 30 Seconds Warm-Up Time and Fast Response Time.
  • Infrared (IR) Light Source with Optical Bandpass Filtering Technology
  • Zero Calibration
  • Proprietary Advanced Pneumatics and Filtering System
  • Large Water Trap Filtering System
  • Water Level Detection
  • EtCO2, FiCO2, Respiration Rate, Anesthetic Agent Concentration, and MAC (Minimum Alveolar Concentration) Parameters

The Dual Gas module is a sidestream multi-gas analyzer measuring end-tidal carbon dioxide (EtCO2) and one of five anesthetic agents (isoflurane, sevoflurane, enflurane, halothane and desflurane) with manual selection of the specific agent type. The Dual Gas parameter window shows the concentration of EtCO2 and an anesthetic gas, respiration rate, and MAC (Minimum Alveolar Concentration). The Dual Gas module is designed for plug-and-play with the BM Pro Series (BM3Vet Pro / BM5Vet Pro / BM7Vet Pro), BM3Vet Touch, and BM7Vet.

Measuring Gases

  • EtCO2
  • Isoflurane
  • Sevoflurane
  • Enflurane
  • Halothane
  • Desflurane
Bionet Dual Gas Module


  • EtCO2: Display of concentration value of carbon dioxide during expiration
  • FiCO2: Display of concentration value of carbon dioxide during inspiration
  • AWRR: Airway Respiration Rate. Display of the number of respirations per minute
  • Upper/lower limit value of alarm: Display of alarm setting range value for the concentration of EtCO2
  • Apnea detection time: Display of apnea setting time in second unit
  • % of anesthetic agent concentration: Display of concentration value of anesthetic agent during inspiration and expiration under mechanically ventilated general anesthesia.
  • MAC: Minimum Alveolar Concentration of a gas at which 50% of subjects do not respond to surgical incision – MAC is a population average; not a true predictor of an individual’s response

Benefits of anesthetic gas monitoring

  • An alarm will sound if the values are out of range, while simultaneously monitoring CO2 and anesthetic gas.
  • Monitor the anesthesia maintenance through MAC parameter.
  • May help prevent overdose of anesthetic gas.
  • Monitor anesthetic gas concentration to help ensure proper functioning of your vaporizer.
  • Records anesthetic gas volume from procedure.

Superior Advantages and Features

  • Low cost, durable, and proven sidestream technology that accurately measures both EtCO2 and the concentration of the anesthetic agent (5 different anesthetic agents selectable).
  • 30 seconds warm-up time upon system initiation, and offers fast response time.
  • Infrared (IR) light source with optical bandpass filtering technology allows the Dual Gas system to be free from frequent or routine high calibration (gain calibration) procedures using calibration gas, eliminating routine hustle of conducting system calibration to maintain accurate performance.
  • Zero calibration ensures the system performs accurately regardless of environment.
  • Proprietary advanced pneumatics and filtering system offer the highest protection and safety of the system in the sidestream technology.
  • Large Water Trap filtering system allows the Dual Gas system to continually run without the need to frequently change the water trap, even in highly moisturized situations. Many other systems use moisture-absorbing filters, which require frequent filter changes.
  • Water level detection feature helps prevent excess moisture for safer operation.
  • Provides EtCO2, FiCO2, Respiration Rate, Anesthetic Agent Concentraion, and MAC (Minimum Alveolar Concentration) parameters

How to connect Dual Gas module to BM3Vet Touch and BM7Vet

Bionet dual gas module connection

Dual Gas module 1 ea, Water Trap 1 ea, Sampling Line 1 ea, Airway Adapter 1 ea, Mounting Brackets 1 set and Quick Guide 1 ea

Feature Specification
     - Range 0 – 100 mmHg; 0 – 13.3 kPa; 0-10% CO2 STPD (standard temperature and pressure dry)
     - Accuracy ± (0.2 vol% + 4% relative)
     - Rise Time 400 ms (average)
Anesthetic Agents
     - Gases Isoflurane, Enflurane, Halothane, Desflurane, Sevoflurane
     - Range Iso., Enf., Hal., Sev.: 0 – 6%
Des.: 0 – 18%
     - Resolution 0 .01%
     - Accuracy ± (0.15% vol% + 4% relative)
     - Rise Time 450 ms (average)
Calibration Factory calibrated
Power Up Time 30 sec
Delay Time < 4 sec
Dimensions 175mm x 85mm x 50mm (L x W x H)
     - Range 0-150 breaths/min
     - Accuracy ±1 breath/min
Flow Rate
     - Range 170 ml/min
     - Accuracy ±20ml/min
Environment Condition
     - Operating Temperature 15 – 35°C
     - Storage Temperature -5 to 50°C
     - Ambient Humidity 15-95% RH
     - Ambient Pressure 70kPa to 106kPa (525mmHg to 795mmHg)
Weight 400g
Water Removal System Water trap tank
Sampling Line Anesthetic gas tolerant standard sample line
Appication Veterinary use Only
Species: Canine, Feline, Equine

* Specifications can be changed without prior notification.

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1 blank Leaflet Download
2 blank Quick Guide and Specifications Download
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