BH4S Portable Multiple Gas Detector Overview The BH4S is a compact, rugged multigas detector that continuously and simultaneously monitors combustible gas, oxygen, and two additional toxic gases. It provides clear visual and audible alerts, records data for later review, and connects to a computer for analysis. Designed for industrial environments, it helps reduce risk by giving early warning of hazardous gas concentrations. Key benefits Continuous multigas monitoring for combustible gas, O2, and two toxic gases at the same time, reducing the need for multiple instruments. Fast, reliable detection from imported industrial sensors with precision and stable repeatability. Clear, easytoread 2.4 inch color display with curve/trend view and data logging for incident review and analysis. Rugged ABS housing with waterproof, dustproof, and explosionproof design plus a nonslip back clamp for secure carry in the field. Rechargeable power and long runtime support extended shifts without frequent battery changes. Main specifications Gas sampling method: natural diffusion Alarm types: light, sound, vibration, and LCD display Operating temperature: 20 to 50 C Power supply: 3.7 V rechargeable lithium battery Sensor life: 24 months Charging time: less than 7 hours Display: 2.4 inch color LCD, 320 x 240 resolution, curve display Runtime: more than 8 hours continuous operation Units: ppm or mg/m3 Data storage: 500 records Housing material: ABS Additional hardware: nonslip back clamp Data interface: connect to computer for data upload and analysis Language: switchable between Chinese and English Features Advanced 32bit microprocessor for low power consumption and easy operation Imported industrial sensors for fast response, accuracy, and good stability Color LCD with numeric and curve displays to track gas trends in real time Multimode alarms: visual, audible, and vibration alerts to ensure detection in noisy or dark environments Robust build: ABS shell that is waterproof and dustproof, with explosionproof design and nonslip back clamp for secure use in harsh conditions Data logging and computer connectivity enable incident review, trend analysis, and record keeping Compact, portable design suitable for carry or attachment to safety gear Typical applications Underground pipeline inspection and monitoring for combustible gas leaks and toxic gas hazards Mining operations for continuous detection of combustible gases, oxygen deficiency or enrichment, and toxic gas presence Metallurgy and industrial plants to monitor confined spaces, process areas, and maintenance activities where gas leaks are a risk What it solves Reduces the need to carry multiple singlegas instruments by combining four sensors in one portable unit Provides early warning of hazardous gas levels with fast response sensors and multimode alarms Simplifies record keeping and incident analysis through onboard logging and computer upload The BH4S Portable Multiple Gas Detector combines rugged construction, reliable sensors, clear displays, and data connectivity to deliver continuous, multigas monitoring for industrial environments.