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| Categories | Multi Gas Detector | 
|---|---|
| Brand Name: | Bosean | 
| Model Number: | bh-4s | 
| Certification: | ce,fcc, rohs, iso9001,SIL, ATEX | 
| Place of Origin: | China | 
| MOQ: | Negotiable | 
| Price: | Negotiable | 
| Payment Terms: | T/T, Western Union, MoneyGram | 
| Supply Ability: | 1000units in a week | 
| Delivery Time: | 1 working days | 
| color: | blue | 
| Detecting Gas: | CO,O2,LEL,H2S | 
| Sampling: | Diffusion | 
| Sensor: | Catalytic and electrochemical | 
| Indication: | colorful LCD indicates | 
Portable gas detector with a large LCD. It can monitor CO, H2S, O2 and combustible gas simultaneously. The instrument features two instant alarms with audio/visual and vibratory indicators, rechargeable battery, and simple use.
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.
| 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 | ||||
1. Astigmatic design is applied to rugged surroundings;
2. Continuously gas concentration and composition colorful LCD
real-time display;
3. Rechargeable lithium battery (continuous working period can be
16~18 hours);
4. Concentration units ppm and mg/m3 can be switched
5. Built-in vibration alarm which is applied for noisy environment;
6. Two stage alarm threshold: the low alarm and high alarm point
can be adjusted based on actual needs;
7. Simple automatic calibration program and plug-in replaceable
sensor;
8. Fully functional self-testing: sensor, integrity of battery and
circuit, acoustic & visual & vibration three-stage alarm;
9. Small figure and light weight;
10. Password protection capability: only the authorized user can
modify the preset parameter.






Note: The above table is a general parameter. If you need other gas and range, please contact our online customer service.
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