OC-904 Portable multi gas detector for NH3, H2S and LEL with rechargeable battery

2018-8-1      View:
  • Brand   oceanus
  • Type   OC-904
  • Inquire Now


OC-904 Portable multi gas detector which is applicable for 3 gas detection of the NH3, H2S, LEL, with the original imported sensor, with the safe and reliable quality. It’s with the diffusion sampling mode, can be connected with the external pump. The portable gas detector can guarantee the security for the personnel working under the toxic gas in the harmful environments.  It has following advantages: small figure, light weight, easy to carry and operate, retractable probe tube, shock resistance and a screen at high resolution.

oc-904 multi function gas detecor


With original imported sensor, high quality and accuracy.

It can use three different sensors to detect many gas type.

Supporting both English and Chinese operating menu.

With audible-visual-vibration alarm mode, and two level alarm .

With a back clip, which is easy to carry when working.

Powered by rechargeable battery with big capacity which support a long working period.

handheld 4 in 1 gas alarm

Technical Parameter:

Gas type


Sensor Type

Catalytic combustion sensor for LEL;

Electrochemical sensor for NH3 and H2S

Sensor life

2~3 years 

Measuring range


H2S: 0~100ppm

NH3: 0~100ppm

Display Information

Gas types, Concentration value, Concentration unit, Time, Battery status, Alarm status, etc.


Large screen LCD

Data Storage 

With data storage function with memory capacity of 1000 alarm records.

Sampling mode

Diffusion sampling (Available for connection with external pump)

Operating Language

Chinese or English operating menu is able to be changed freely.

Alarm Mode

Audible-visual-vibration alarm, sound75Db

Power Supply

3.6V, 1600mAh rechargeable lithium battery, continuous working period can reach to 10 hours or above.

Explosion-proof Grade

Ex ib IIB T3

Protection Grade


Working Environment

Working Temperature: -20℃50℃

Working Humidity: 0-95%RH (non-condensing)

Body Material

ABS and PC


ABS carrying case




210g (with charger)


2 years


CNEx, CE and RoHS

gas detector with pump


The portable multi gas detector used in the gas 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.

If any inquiry of the multi gas detector, please contact us!

Carol Liu

Henan Oceanus Import & Export Co., Ltd.

Email:carol.liu @china-oceanus.com

Tel: (0086)-371-60998169

Mobile: ( 0086) 13673683950

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