4-in-1 Portable Gas Detector – O₂, CO, H₂S & LEL Explosion-Proof Industrial Safety Monitor

• Simultaneous detection of O₂, CO, H₂S, and combustible gases (LEL)

• High-precision electrochemical and catalytic sensors

• Large 2.8" full-color LCD display with real-time readings

• Triple alarm system: sound, flashing LED, and vibration

• Fast response time under 45 seconds

• Stores up to 3,000 alarm records for safety tracking

• Built-in 2500mAh rechargeable lithium battery

• Explosion-resistant industrial design

• Water-resistant, dust-proof, and drop-resistant housing

• Lightweight portable design (260g) with secure belt/vest clip

• Adjustable high and low alarm thresholds

• Ideal for oil & gas, petrochemical, mining, utilities, confined space entry, and industrial maintenance

Constructed from high-strength engineering plastic with anti-slip rubber protection for demanding industrial environments. Keep sensors clean and unobstructed during operation. Store in a dry location away from corrosive chemicals and extreme temperatures. Recharge the battery regularly using the supplied charging cable and perform periodic calibration according to workplace safety procedures.