Multi Gas Detector O2/CO/H2S/LEL BH-4A Portable Multi Gas Detector ¤ DESCRIPTION: BH-4A portable multi-gas detector could detect combustible gas, O2 and other two types toxic gases continuously and simultaneously. 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 #39; life and avoid damage on the relevant equipments. We provide gas ¤ SPECIFICATIONS: Parameter : CO: 0 ~ 1000ppm O2: 0 ~ 30%vol H2S: 0 ~ 100ppm CH4: 0 ~ 100%LEL Accuracy: ≦±5% F.S. Response Time: ≦30s Indication: LCD displays real-time and system status; LED, audio and vibration alert Alarm:Type low amp; high alarm, multiple gas alarm, Explosion-proof grade: ExiaIICT3 Protection Grade: IP65 Power Source: DC3.7V Li-on bat, 1800mAh Weight: Appr. 400g (with battery) Dimensions: 130 × 67 × 30 mm #Sales | Service | Training #Warranty 12 months #