OC-904A Portable multi gas detector with LED light

2017-12-14      View:
  • Brand   Oceanus
  • Type   OC-904A
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OC-904A Portable multi gas detector used to detect the gas concentration in many applications, including of the chemical industry, petroleum, gas station, metallurgy, agriculture, biology pharmaceuticals, power, lab research and other industry environment where need to inspect combustible or toxic gas concentration.

With the LED light, it’s very convenient for the underground usage, such as the Mine, Coal Mine,  Tunnel, etc.


Original imported sensor with high performance and precision, good stability and repeatability, long working time.

TFT LCD screen display the measuring data.

Record the alarm data of 10,000 sets.

Adjustable preset two-stage alarm level.

With the 32bit low power consumption ARM processor and quick response.

Restore factory setting function, avoid the mis-operation.

Three alarm mode: Audible, Visual, Vibration.

Support for 4 sensor at the same time.

Support the Chinese/English language menu.

The menu interface with words and icon.

LED light function, can provide the light in the dark area or other Emergency time.

LED indicate light, will flash in the dark area.

USB charger port.

Explosion-proof grade of Exd ib IIC T6 Gb;

Protect grade of IP65.


Technical parameter:



Gas type

EXO2COH2S or customized;

Working principle

Catalytic combustion sensor for combustible gas;

Electrochemical sensor for toxic gas and oxygen.

Testing mode

Diffusion sampling.

Display mode

TFT LCD display

Concentration Unit


Measuring range

EX0-100%LEL O2:0-30%VOL CO0-500ppm H2S0-100ppm; or customized;


EX1%LEL O2:0.1%VOL CO1ppm H2S1ppm; or customized;



Alarm mode

Audible-visual alarmVibration alarmVoice≥75dB@25cm;

Preheat time


Response time


Recovery time


Explosion proof grade

Exd ib IIC T6 Gb;

Protection grade


Output signal

Wireless transmission and print functionOptional;

Body material


Working temperature

-20+50or customized;

Working humidity



USB port;

Working voltage

3.7V rechargeable lithium battery;

Charging time

≤6 hours;

Working time

8hours continuouslyUnder normal temperature and no alarm;

Power consumption


Working pressure





About 182g;


GB3836.1-2010GB3836.2-2010GB3836.4-2010MT 704-2008,

MT 703-2008,MT 1084-2008,GB 15322.3-2003;


12 months;


Box, instruction, USB charger , data line, calibration cap.



If you need gas detector for other gas type or measuring range, welcome to contact us for more details.

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