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| Categories | Multi Gas Detector | 
|---|---|
| Brand Name: | Bosean | 
| Model Number: | BH-4A | 
| Certification: | CE ATEX FCC ROHS SIL | 
| Place of Origin: | China | 
| MOQ: | 1 | 
| Price: | USD 80 to 100 per piece | 
| Payment Terms: | L/C, D/A, L/C, D/P, T/T, Western Union, MoneyGram | 
| Supply Ability: | 100 pieces per day | 
| Delivery Time: | 1-2 working days | 
| Packaging Details: | Aluminium alloy suitcase with carton box | 
| Material: | ABS+PC | 
| Detecting Gas: | CH4 O2 CO H2S | 
| Sensor Life: | 2 years | 
| Sampling Method: | Diffusion | 
| Measure Range: | CH4 (0-100%LEL), O2 (0-30%VOL), CO (0-1000ppm), H2S (0-100ppm) | 
| Explosion-proof Grade: | Exib IIB T3 Gd | 
Multi Gas Detector Color Display with Graphing Rechargeable Battery Sound Light Vibration Alarm
Brief Introduction:
The BH-4A is a cost-effective four-in-one composite gas detector. It is a portable detection and alarm device that continuously detects the ambient gas concentration in the workplace. The four-in-one composite gas detector uses natural diffusion to detect ambient gas. It can be freely combined with a variety of different gases according to user needs. It has a wide application range. It adopts high-quality imported electrochemical gas sensor with excellent sensitivity and excellent repeatability. Sexuality; Baoshi's four-in-one composite gas detector has high reliability; LCD color screen display, intuitive and clear, friendly interactive interface, simple operation; adjustable high and low alarm function.
Features:
Sensors supported:
Can detector more than 30 kinds of gases, can customize flexibly according to user’s need (detect 4 different gases in one unit), normally detect Ex,O2,H2S,CO gases.
Application Area:
The detector is suitable for explosion-proof, toxic gas leakage and rescue, underground pipelines, mines, metallurgy, power plants, chemicals, tunnels, etc., effectively avoiding the occurrence of poisoning accidents, ensuring the safety of workers and avoiding losses of production equipment.

Specifications:
| Operating & Storage Environment | Temperature: -20°C~55°C (-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 | 
| Dimensions | 130mm*67mm*30mm | 
FAQ:
Q1:Are you a trading company or manufacturer ?
A1:We are factory.
Q2:What's your payment method?
A2:T/T, Paypal, Western Union, L/C, Credit card etc.
Q3:Can you customize based on my requirement?
A3: Yes OEM /ODM available.
Q4:What's your nomal shipment?
A4: Usually it's by air express such as DHL,FEDEX,TNT or UPS, door to door.
Q5: Warranty period?
A5:12 months warranty for all products.
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