4 in 1 Gas Detector Multi Gas Detector fitted with high precision Imported Sensors with CE FCC ROHS Certified

Gas type: Ex,O2,CO,H2S

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: %VOL,%LEL,ppm,mg/m3;

Measuring range: EX:0-100%LEL; O2:0-30%VOL, CO:0-500ppm, H2S:0-100ppm

Resolution: EX:1%LEL; O2:0.1%VOL, CO:1ppm, H2S:1ppm; or customized;

Precision: ≤±3%FS;

Alarm mode: Audible-visual alarm,Vibration alarm,Voice≥75dB@25cm;

Preheat time: ≤90s;

Response time: T90≤30s;

Recovery time: ≤20s;

Explosion proof grade: Ex ib IIB T3;

Protection grade: IP64;

Output signal: Wireless transmission and print function(Optional);

Body material: PC+TPU;

Working temperature: -20℃~+50℃(or customized);

Working humidity: ≤95%RH,(non-condensing);

Charger: USB port;

Working voltage: 3.7V rechargeable lithium battery;

Charging time: ≤6 hours;

Working time: >8 hours continuously(When normal temperature and no alarm);

Power consumption: <0.7W;

Working pressure: 86~106KPa;

Standards: GB3836.1-2010,GB3836.2-2010,GB3836.4-2010,MT 704-2008, MT 703-2008,MT 1084-2008,GB 15322.3-2003;