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MGT is a Portable Multi-Gas Detector engineered for personal protection and use in confined spaces detecting Oxygen (O₂), Hydrogen Sulphide (H₂S), Carbon Monoxide (CO) and Combustible Gases

IECEx Approved

Protecting workers against Oxygen deficiency, Toxic gas poisoning and Combustible gas explosion by continuously measuring Oxygen (O₂), Hydrogen Sulphide (H₂S), Carbon Monoxide (CO) and Combustible Gas levels. These gases that cause the majority of industrial accidents. The MGT raises the alarm through visual, vibrating and audible means when at dangerous levels displaying at the moment concentrations.. The unit has in built data logging which can be downloaded to a PC using the MGT IR Link for analysis and is provided with battery charger.

  • IEC Ex approved
  • Detects Oxygen, Hydrogen Sulphide, Combustible Gases (Calibrated for Methane(CH₄)) and Carbon Monoxide.
  • Easy to read and view display
  • Easy to calibrate and check
  • Small and Easy to carry
  • Robust and waterproof case
  • Clearable Max and Min gas concentration recorded
  • Displays Time Weighted Average and Short-term Exposure Limit
  • Adjustable alarm levels using the SGT IR Link
  • Data logging for the last 30 events
  • Flashing and sounding and Vibrating Alarm


Related Products

Hazardous Areas (IEC Ex Certified)

IEC Ex approved gas detectors / gas sensors for use in Zone 1 areas within Australia for both Toxic and Flammable gas


Lift Shaft Wells

Oxygen sensors are often placed in lift shaft wells to measure the atmosphere prior to entry. Problems arise due to the pressure changes in the left shaft well due to the air movements associated with the lift.resulting in false alarms . There is also an issue associated with safe work permits for access into the lift shaft area when the oxygen sensor requires calibration or replacement. The GDA 4500 system uses a vacuum pump (dc brushless) , a flow fail mechanism and a sensor  to extract the gas via a 6mm ID tubing. The Nylon tube is fitted with a filter element to provide dust filtering and prevent mycological build up in the sampling line.

Designed, Manufactured and Supported in Australia.

Confined Space Gas Monitors

May confined spaces have a high threat of poisonous gases and man-down incidents. Responders or workers need to be protected by ongoing, continuous atmospheric monitoring. SENKO Gas Detection Australia's portable gas detectors are built to protect you and your staff and from comply with Australia regulations. With IP 67 Waterproof and IEC Ex Approved Explosion proof casing, data logging, simple calibration and set up. The SENKO Gas Detection Australia Line of Portables are ready to go when you are.

Specification NameSpecification Value
Detectable GasesOxygen (O₂), Hydrogen Sulfide (H₂S), Carbon Monoxide (CO), Combustible Gas (CH4)
Detectable Gas RangesO₂ = 0~30%Vol | H₂S = 0~500ppm | CO = 0-100ppm | CH4 = 0~100%LEL
Output SpecificationsLCD display of current readings with alarm sounder and vibrator
Sensor TechnologyElectrochemical Cell and Catalytic Sensor (P-type) or NDIR Sensor (N-type)
Power ConsumptionDC 3.7V, 2Ah Lithium-Ion Battery
Operating LifeBattery Duration (MGT-P: 25 Hours | MGT-N: 60 Days)
Operating Temperature-20˚C ~ +45˚C
Operating Humidity10 to 95% RH (Non-condensing)
Dimensions69mm(W) x 118mm(H) x 40mm(D)
Weight240g (Battery, Clip included)
Enclosure MaterialRubber-Base PC Case
Enclosure RatingIP67
ApprovalMGT-P: Ex d ia IIC T4 | MGT-N: Ex ia IIC T4

SENKO MGT Portable Gas Detector Kit

  • MGT Portable 4 Gas Detector
  • Mains Charger
  • Gassing Cap
  • User Manual
Part Number Gas Sensor Type Range Resolution Sensor life time Battery Life


Oxygen (O₂) Electrochemical Cell 0-30% Vol 0.1% Vol < 2 Years 25 Hours
Hydrogen Sulfide (H₂S) Electrochemical Cell 0-500 ppm 1 ppm > 2 Years
Carbon Monoxide (CO) Electrochemical Cell 0-100 ppm 0.1 ppm > 2 Years
Combustible Gas (Methane(CH₄)) Catalytic Sensor 0-100% LEL 0.1% LEL > 2 Years
MGT-N Oxygen (O₂) Electrochemical Cell 0-30% Vol 0.1% Vol < 2 Years 60 Days
Hydrogen Sulfide (H₂S) Electrochemical Cell 0-500 ppm 1 ppm > 2 Years
Carbon Monoxide (CO) Electrochemical Cell 0-100 ppm 0.1 ppm > 2 Years
Combustible Gas (Methane(CH₄)) NDIR Sensor 0-100% LEL 0.1% LEL > 2 Years
Other gas combinations available on request

SGT Link


Part Number Image Description
IR-Link IR-Link Computer USB infrared communicator compatable with SENKO SGT & MGT products
SP-PUMP 101 SP-Pump 101 Sampling pump designed for connection to the SENKO SGT & MGT products.
MGT-4 Dock Docking Station 4 Way Docking Station



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CALGAS : Calibration Gas

The highlights of the new Portagreen range speak for themselves. They are refillable, compact, made from the highest quality, tested for the lowest failure rate and longest shelf life and totally recyclable.  The Portagreen range of calibration gas cylinders enable businesses to reduce their carbon footprint and cut costs while demonstrating a commitment to the environment.

SENKO IR-Link : Portable Detector to Computer IR Link Communicator

IR Link enables users to set up their Senko Portable Gas Detectors calibration levels, alarm set points, and configuration options as well as download logs.


SENKO Dock : Portable Docking Station

The portable docking station maximizes the performance of SGT/MGT devices by calibrating or bump testing up to four portable devices at once to greatly reducing testing time.