OC-903 Portable gas detector with internal pump

2020-6-2      View:
  • Brand   Henan Oceanus
  • Type   OC-903
  • Inquire Now

OC-903 Portable gas detector


OC-903 portable gas detector with the famous brand sensor for different gas type, it can inspect four gas at the same, with the inner pump and the data logger function, optional sensor for the temperature and humidity measurement. It can inspect the single gas, two gas, three gas or four gas, according to the different customers demands.


Semiconductor technology of ultra low power 32 bit microprocessor, 24 bit ADC acquisition chip, so with the high accuracy.

2.4 inch IPS industrial grade color screen.

Support English language menu.

The gas concentration unit support for the ppm, mg/m3, %LEL, %vol.

For 1~4 gas detection, supporting single gas, two gas, three gas and four gas inspection.

With the inner pump and the suction strength is adjustable in different level.

Explosion proof grade of Ex ia IIC T4 Ga.


Inspect the gas concentration and alarm when it up to the preset alarm level.

With auto-test and data recover function.

One-key operation to restore to factory default setting.

Temperature and pressure compensation function.

Adjustable two stage audible-visual alarm threshold value.

Powered by rechargeable lithium battery with big capacity.

Working under the micro negative pressure is available.

Overload protection, over charge protection, anti static interference, anti magnetic interference, etc.

Technical specifications:

Gas type

Combustible gas, Toxic gas, Oxygen, CO2, TVOC, etc.

Working principle

Catalytic combustion sensor for combustible gas;

Electrochemical sensor for Oxygen and Toxic gas;

Infrared sensor for CH4, CO2, SF6;

PID sensor for TVOC.

Measuring range

According to different gas.


According to different gas.



Sampling method

Pump-suction sampling, flow rate of 100~1000mL/min.(Adjustable)

Data logger function

About 100,000 group of data capacity.

Response time


Recovery time






Zero drift



Gas type, concentration unit, value, Time, Temperature, Humidity, pump and battery status

Concentration unit

%vol, %lel, ppm, mg/m3

Working environment

Working temperature: -30~60 degree;

Working humidity: 0~95%RH (non-condensing);

Working pressure: -30Kpa~100Kpa.

Explosion-proof Grade

Ex ia IIC T4 Ga

Protection grade


Alarm mode

Audible-visual-vibration alarm






Box, Instruction, USB charger, Data line, Calibration cap, CD



The portable gas detector with internal pump used in thegas safety inspection and alarm for industrial scene, such as petroleum refinery, chemical plants, LPG stations, boiler rooms, gas stations, paint spray booths, metallurgy, mining, fire, environmental protection, etc., where need to inspect the gas concentration of the Combustible gas and Toxic gas.

More Products