4 in 1 Gas Monitor for CO H2S O2 and LEL - Portable Multi Gas Detector with Sound Light and Vibration Alarms - Rechargeable Tester with Backlit Display for Industrial Use

Item Type: Gas MonitorMaterial: ABSModel: ST8904Battery: Lithium battery 3.7V 1800mAh (built in)Basic Parameters:CO: 0-999 ppmH2S: 0-500 ppmO2: 0.0-30.0% VOLLEL: 0-100% LELPackage List：1 x Gas Monitor4 x Accessories1 x USB Cable1 x User Manual1 x Storage Bag

• Four Gas Detection: This monitor detects CO, H2S, O2, and LEL concentrations using integrated sensors to provide real time measurement for industrial safety monitoring.
• Triple Alarm Interface: The device features audible, visual, and tactile vibration alarms to notify users when gas levels reach user defined high or low concentration set points.
• High Sensitivity Sensor: Engineered with a responsive sensor system for short response times and repeatable accuracy across marine, chemical, and laboratory applications.
• USB Rechargeable Power: Integrated rechargeable battery supports multiple charging methods including connections to computers, vehicle outlets, and external power banks via a USB interface.
• Backlit High Resolution Display: The screen provides clear readings in low light environments or direct sunlight to ensure data visibility during field operations or industrial inspections.