OC-904 Portable Ammonia NH3 gas detector

2020-6-1      View:
  • Brand   Henan Oceanus
  • Type   OC-904
  • Inquire Now

OC-904 Portable Ammonia NH3 gas detector 

 gas detector


OC-904 Portable Ammonia NH3 gas detector which is applicable for NH3 detection, 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 promise the security for the personnel working under the harmful environments.



It used original imported sensor with good quality and high accuracy.

It can be combined with 1~4 different gas sensors for different gas type.

LCD dot matrix display, support both English and Chinese operating menu.

Adjustable preset two-stage alarm level.

With audible-visual-vibration alarm mode.

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

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

Technical Specification:

Gas type

Ammonia (NH3)

Sensor Type

Electrochemical sensor

Sensor life

2~3 years 

Measuring range

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, sound≥75dB

Power Supply

3.7 V, 2000 mAh rechargeable lithium battery, continuous working period can reach to10hoursor above.

Explosion-proof Grade

Ex ib IIB T3Gb

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


The portable NH3 gas detector used in the gas safety inspection and alarm for industrial scene, such as petroleum refinery, chemical plants, Poultry house, LPG stations, boiler rooms, gas stations, paint spray booths, metallurgy, mining, fire, environmental protection, etc., where need to inspect the gas concentration of the Ammonia gas.


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