Stay protected in hazardous environments with the Bosean BH-4A Portable 4-Gas Detector. Engineered for industrial safety, this multi-gas monitor simultaneously detects Oxygen (O₂), Hydrogen Sulfide (H₂S), Carbon Monoxide (CO), and Combustible Gases (LEL) with fast, reliable performance. Featuring high-precision electrochemical sensors, audible, visual, and vibration alarms, onboard data logging, and a rugged waterproof design, the BH-4A is an ideal solution for Oil & Gas, petrochemical plants, confined spaces, mining, utilities, and industrial maintenance.
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Product features
Simultaneously monitors O₂, H₂S, CO, and combustible gases (LEL).
Factory-calibrated high-precision electrochemical sensors for reliable gas detection.
Fast response time of less than 30 seconds with ±5% F.S. accuracy.
Adjustable audible, visual, vibration, and on-screen alarms for enhanced worker safety.
Stores up to 500 alarm records with time stamps for safety tracking and compliance.
High-visibility 2.4-inch LCD display with real-time gas concentration readings.
Rugged ABS housing with anti-slip rubber protection for demanding industrial environments.
Waterproof, dust-resistant, and explosion-proof design for reliable field use.
Rechargeable lithium battery providing approximately 6–8 hours of continuous operation.
CE and FCC certified, ideal for Oil & Gas, petrochemical, mining, utilities, wastewater treatment, and confined space applications.
Materials and care
Materials: Durable industrial-grade ABS housing with impact-resistant anti-slip rubber overmold and integrated electrochemical gas sensors.
Care Instructions: Clean with a soft, damp cloth only. Do not use solvents, abrasive cleaners, or immerse the detector in water.
Calibration: Perform routine bump tests and periodic calibration according to your facility's safety procedures to maintain measurement accuracy.
Storage: Store in the supplied aluminum carrying case in a clean, dry location away from excessive heat, moisture, and corrosive chemicals.
Battery Care: Fully recharge the built-in lithium battery before extended use and avoid long-term storage with a depleted battery.
Package Includes: BH-4A 4-Gas Detector, charging adapter, USB charging cable, calibration cap, aluminum carrying case, user manual, and certificate.
