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Portable gas detector great for leak detection, personnel safety, and general gas detection.  Capable of sensing multiple gasses (see list below) with simple sensor swaps.  Integrated datalogging, and audible alarms.  This Gas Detector sold with every accessory you may need for accurate and fast portable gas detection.


Production Feature

  1. Interchangeable “Smart Sensors” for over 30 gases
  2. Internal sample pump and external sampling wand
  3. Two NiMH “D” cell battery (battery charger is in addition)
  4. One-hand pistol grip design
  5. NEW touch screen and back-lit color display
  6. Instantaneous and timed-sampling modes of operation
  7. Visual and Audible alarms
  8. Internal data-logger with USB connection


Gas Detection Sensor


Ammonia (NH3)

Arsine (AsH3)

Bromine (Br2)

Carbon Dioxide (CO2)

Carbon Monoxide (CO)

Chlorine (Cl2)

Chlorine Dioxide (ClO2)

Diborane (B2H6)


Ethylene Oxide (ETO)

Fluorine (F2)

Formaldehyde (CH2O)

Germane (GeH4)

Hydrocarbon (HC)

Hydrogen (H2)

Hydrogen Bromide (HBr)

Hydrogen Chloride (HCl)

Hydrogen Cyanide (HCN)

Hydrogen Fluoride (HF)

Hydrogen Peroxide (H2O2)

Hydrogen Selenide (H2Se)

Hydrogen Selenide (H2Se)

Hydrogen Sulfide (H2S)

Iodine (I2)

Methane (CH4)

Nitric Oxide (NO)

Nitrogen Dioxide (NO2)

Nitrogen Oxides (NOx)

Oxygen (O2)

Ozone (O3)

Peracetic Acid

Phosgene (COCl2)

Phosphine (PH3)

Silane (SiH4)

Sulfur Dioxide (SO2)

Portasens III Gas Detector

  • Range:

    Dependent on sensor module used


    Backlit, touch-sensitive color graphics LCD


    Sensor dependent but generally ± 5% of value (limited by cal. gas)


    Typically 0.1-1% of sensor module range


    USB transfer of stored gas values


    4 Gb (millions of data points)

    Storage Interval:

    Programmable from 1 minute to 60 minutes


    Three concentration alarms (caution, warning, and danger with adjustable setpoints). Low flow and low battery alarms displayed on LCD & indicated by audible beeper


    Rechargeable NiMH D cell battery runs about 10 hours continuously. Two D cells supplied with unit. Alkaline D cell battery may also be used.


    Optional charger available

    Operating Temp.:

    -25o to +55oC


    0-95% Non-condensing

    Detector Material:

    Glass Filled Polycarbonate


    3.5”(W) x 9”(H) x 5.5”(D) 89mm x 229mm x 140mm

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