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MGT Multi Gas Detector

Hand Held Gas Detector

The MGT portable multi gas detector is used for detection of Flammable gases, oxygen depletion & toxic gases, for meeting the safety monitoring requirements of a broad range of different industries and utilities.

The MGT multi gas detector is utilized for detection and monitoring of gas Concentration of 4 gases at a time namely Oxygen, Carbon Monoxide, Hydrogen Sulphide and combustible gas simultaneously on the LCD display of the instrument, in real time, to ensure that your workers feel safe and that you maintain safety compliance. When the measurement of concentration by inhalation of gas is required, an optional sampling pump can be used to measure the gas concentration and leakage at pertinent place. 

Oxygen is displayed in %vol, combustible gases in %LEL and H2S, CO2 in PPM unit.

Generally, oxygen concentration level should be 20.9% vol; accordingly, instrument provides a range of 0~30%, whereas oxygen 19% (low) < x > 23% should be considered as alarming.

Similarly, Carbon Monoxide (CO) being a poisonous gas – values above 70ppm cause headaches, nausea and sustained values above 150 ppm to 200ppm can cause unconsciousness and death; accordingly instrument provides a CO detection value of 0 ~500ppm. Combustible gases are measured for 0~100%LEL value.

Applications include: Steelworks, Petrochemical plant, Ship building yard, Sewage treatment plant, Mines, Power supply works, Hemetically sealed area (manhole, tank), Gas utilities & telecom works.



Product Specification

Measure Gas





Detecting Method

Diffusion / Sampling(with Sampling Pump(option))

Measure Mechanism

Catalytic (MGT-P) NDIR (MGT-N)





0~100 %LEL

0~30 %vol

0~500 ppm

0~100 ppm

Sensor life

> 5 years

< 2 years

> 2 years

> 2 years

Response Time

< 15sec/90%scale

< 15sec/90%scale

< 30sec/90%scale

< 30sec/90%scale


± 3%/ Full Scale



0.1 %vo

1 ppm

0.1 ppm


Push Button Key

Alarm Via


LCD backlit display, Indicator LED
Buzzer alarm (dB at 10 CMS), Vibration

Data Logging

30 Events (FIFO), Calibration log, Bump test log

Temp & Humidity

-20˚C ~ +45˚C, 10 to 95% RH(Non-condensing)

Battery Type

Manufacturer: SAMSUNG SDI, Product Name: ICP103450S, Type: Lithium-Ion Charger Nominal Voltage : 3.7V , Nominal Capacity: 2000mAh , Max Charging Voltage: 6.3V

Battery Duration

   (MGT-P : 24 Hours, MGT-N : 2 Months)


Rubber-base PC Case

Size & Weight

(W x D x H) 60 x 40 x 118mm, 240 g


SP-PUMP101 (Sampling pump), SENKO IR-LINK, Docking-Station


MGT-P : Ex d ia IIC T4, IP 67, MGT-N : Ex ia IIC T4, IP 67, CE

User configurable

Bump test interval, calibration interval, initial setting concentration levels for calibration (*if IR Link is purchased)


 • Continuous display of real time gas concentration; when levels exceed threshold, display icons as below will blink and the instrument will alert the operator.

LOW: minimum gas concentration detected by the device
HIGH: maximum concentration detected by the device
TWA (Time Weight Average): Acceptable hourly average exposure levels of the toxic gases for the last eight hours
STEL (Short Term Exposure Limit): Acceptable average exposure levels of the toxic gases for the last 15 minutes provide a triple ALERT
Alert options: Easy and simple to operate, the device provides a triple ALERT by Audio Buzzer Alarm, Bright LED light and Vibration when the concentration exceeds the safety gas levels in addition, provides alerts an readings on LCD display
Data logging of up to 30 events. Data log records the operation status of every second
Self-test: instrument contains a self-test feature which allows the operator to self-test the instrument motor, buzzer, LED, LCD, memory etc. prior use.
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