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Brand Name : Zetron
Model Number : BH-4A
Certification : CE
Place of Origin : China
MOQ : 1 set
Payment Terms : T/T, Western Union, MoneyGram, D/P, D/A, L/C
Supply Ability : 1000 SET / week
Delivery Time : 1-10 work days
Packaging Details : 160*70*28mm
Gas Sensor Life : 2 years
Accuracy : ≦±5% F.S.
Response Time : ≦30s
Power : DC3.7V Li-on battery, 1800mAh
Exterior dimensions : 130mm×67mm×30mm(L × W × H)
Power Source : Appr. 400g (with battery)
BH-4A Portable Multi-gas Detector
BH-4A portable multi-gas detector could detect combustible gas, O2, and other two types of toxic gases continuously and simultaneously can protect the workers' life and avoid damage to the relevant equipment.
Detecting gas:
Combustible gas, H2S, CO, O2
*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.
*Large LCD, more intuitionistic, abundant, and clear indication.
*Compact design, easy carrying.
*High-strength engineering plastics and compound anti-slippery rubber.
Accuracy | ≦±5% F.S. |
Response Time | ≦30s |
Indication | LCD displays real-time and system status; LED, audio, and vibration alerts for gas leakage, fault, and low voltage. |
Sensor | O2 /H2S / CO: plug-in electrochemical sensor; Combustible gas (LEL): plug-in catalytic combustion sensor. |
Working environment | -20℃~50℃, <95%RH (no dew) |
Alarm Type | low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm |
Charging time | 6h~8h |
Working time | ≧8h continuously (without alarm) |
Protection Grade | IP65 |
Weight | Appr. 400g (with battery) |
Dimensions | 130mm×67mm×30mm(L × W × H) |
Standard accessories | Suit case packaging, 1pc; Charger, 1pc; Calibration cap, 1pc; Communications cable, 1pc; User manual, 1pc. |
Model | Range | Resolution | L-alarm | H-alarm |
CO | 0-1000ppm | 1ppm | 50ppm | 150ppm |
O2 | 0-30%vol | 0.1%vol | 19.5%vol | 23.5%vol |
H2 | 0-1000ppm | 1ppm | 50ppm | 150ppm |
H2S | 0-100ppm | 0.1ppm | 10ppm | 20ppm |
CH4 | 0-100%LEL | 1%lel | 20%LEL | 50%LEL |
NO2 | 0-20ppm | 1/0.1ppm | 5ppm | 10ppm |
EX | 0-100%LEL | 1%lel/1%vol | 20%LEL | 50%LEL |
C3H8 | 0-100%LEL | 1%lel/1%vol | 20%LEL | 50%LEL |
C2H5OH | 0-100%LEL | 1%lel/1%vol | 20%LEL | 50%LEL |
NH3 | 0-100ppm | 0.1/1ppm | 20ppm | 50ppm |
CL2 | 0-20ppm | 0.1ppm | 5ppm | 10ppm |
O3 | 0-10ppm | 0.1ppm | 2ppm | 5ppm |
SO2 | 0-20ppm | 0.1/1ppm | 5ppm | 10ppm |
PH3 | 0-20ppm | 0.1ppm | 5ppm | 10ppm |
CO2 | 0-5000ppm | 1ppm/0.1%vol | 1000ppm | 2000ppm |
NO | 0-250ppm | 1ppm | 50ppm | 150ppm |
C2H4O | 0-100ppm | 1/0.1ppm | 20ppm | 50ppm |
HCN | 0-50ppm | 0.1/0.01ppm | 10ppm | 20ppm |
HCL | 0-20ppm | 0.001/0.1ppm | 5ppm | 10ppm |
CH2O | 0-20ppm | 1/0.1ppm | 5ppm | 10ppm |
HF | 0-100ppm | 0.01/0.1ppm | 2ppm | 5ppm |
C7H8/C8H10 | 0-20ppm | 0.01/0.1ppm | 5ppm | 10ppm |
Note: Not all gases and ranges are listed, if you need more information, please contact us.
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Zetron BH-4A Portable Gas Leakage Detector Alarm Measurement O2 CO VOC Images |