Portable multi-gas detector BH-4S CO H2S O2 Combustible Explosive Gas (Ex / LEL / CH4) leakage detection
BH-4s 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’ life and avoid damage on the relevant equipments.
| Operating & Storage Environment |
Temperature: -20℃~55℃ (-4F~122F) Humidity: 5%-95% (Relative humidity non-condensing) Pressure: 95~110kPa |
| Sampling method |
Diffusion type |
| Detecting Range |
CO: 0~1000ppm H2S:0~100 PPM O2: 0~30%vol Combustible Explosive Gas (Ex / LEL / CH4): 0~100%LEL |
| Sensor |
O2 /H2S / CO: plug-in electrochemical sensor Combustible gas (LEL): plug-in catalytic combustion sensor |
| Alarm Type |
low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm |
| Resolution |
0.1%VOL (O2), 1ppm (CO), 0.1ppm (H2S), 1%LEL (EX) |
| Accuracy |
3% F.S |
| Response time |
10s |
| Repeatability |
1% |
| Zero drift |
1% |
| Display |
Alphanumeric large LCD displays the real time gas concentration and alarm stage |
| Backlight |
Automatically activated when working in poor lighting environment or the alarm sounding or the button is knobbed down. |
| Self-checking Function |
Self-checking Battery power, display, sensor, hardware failure |
| Explosion-proof |
EXiaIICT4 |
| Protection grade |
IP65 |
| Power Supply |
Rechargeable lithium battery |
| Weight |
400g |
| Dimensions |
145x69x28mm（L×W×H） |
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
