Henan Bosean Electronic Technology Co., Ltd.
one stop gas detection solution from China factory
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The BH-4s portable multi-gas detector can detect flammable gas, O2, and two other toxic gases continuously and simultaneously. Widely used in areas where explosion protection is required and toxic gas leaks such as underground channels and mining to protect workers' lives and avoid damage to related equipment.
| Target Gas | Range | Low alarm | High alarm | Resolution |
| Ex | 0～100%LEL | 20%LEL | 50%LEL | 1%LEL |
| CO | 0～1000ppm | 50ppm | 150ppm | 1ppm |
| CO2 | 0～5%vol | 1%vol | 2%vol | 0.01%vol |
| O2 | 0～30%vol | 19.5%vol | 23.5%vol | 0.1%vol |
| Other gases needed, please contact supplier | ||||
Gas sampling method: Natural diffusion
Detecting gas: Combustible gas, CO, CO2, O2
Accuracy: ≤±5% 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, 2000mAh
Charging time: 6h~8h
Working time: ≥ 8h continuously (without alarming)
Gas Sensor Life: 2 years
Explosion-proof grade: Ex ib IIB T3 Gb
Protection Grade: IP65
Weight: Appr. 400g (with battery)
Dimensions: 130mm×67mm×30mm(L × W × H)
Note: The above table is a general parameter. If you need other gas and range, please contact our online customer service.