K-400 portable gas detector with large LCD. It can monitor CO, H2S,O2 and combustible gas simultaneously. The instrument features two instant alarms with audio/visual and vibratory indicators, rechargeable battery and simple use.It is widely used in the area where explosion-proof is required or toxic gas leaks, like underground channels or mining industry, so as to protect the workers’life and avoid damage on the relevant equipments.

• Natural diffusion sampling method and high-sensitivity sensor, with high sensitivity and repeatability. 
• 32-bit built-in MCU, high reliability and self-adaptation ability. 
• Full functions, easy operation. 
• CSTN colorful LCD, more intuitionistic, abundant and clear indication. 
• Compact design, easy carrying. 
• High strength engineering plastics and compound anti-slippery rubber; water-proof, dust-proof and explosion-proof. 
• 1200pcs data records, can be contacted with computer via software. Can print the data records, can storedata records, canmake the data analysis. 

Gas curve display.

Gas sampling method Natural diffusion

Detecting gas Combustible gas, H2S, CO, O2

Accuracy         ≦±3% F.S.

Response Time ≦30s

Indication                              LCD displays real-time and system status;LED, audio and vibration alert for gas leakage, fault and low                                                 voltage. 

Working environment -20℃～50℃, ＜95%RH (no dew) 

Power Source DC3.7V Li-on battery, 1800mAh 

Charging tim         4h~6h 

Working tim         ≧10h continuously (without alarming) 

Gas Sensor Life 2 years

Explosion-proof grade Ex ib IIBT4 Gb 

Protection Grade         IP65

Dimensions         140mm×64mm×34mm(L × W × H)