The JH-37 Composite Gas Detection Alarm redefines portable safety with its 148g ultra-light design and industrial-grade durability (IP68/Ex-proof). It simultaneously monitors 4 gases and features Bluetooth/WiFi connectivity for real-time data sync. With 12+ hours of battery life, triple alarm system with night illumination, and automatic data logging, it ensures reliable protection for industrial applications like petrochemical and rescue operations.