Comprehensive Alarm System: Featuring four alarm modes - , light, vibration, and display alarm - our gas leak detector alerts you when preset gas concentration levels are reached. The easy-to-read LCD screen displays real-time concentrations of EX gas, O2, H2S, and CO. Additionally, the high and low alarm values can be adjusted to meet your specific needs. Ready to Use and : Our Air Quality Monitor is ready to use straight out of the box - simply turn it on, and it will start working. Practical and Portable Design: With its compact size and clip on the backside, this gas sensor detection tool is easy to carry and convenient to use. Ensuring Environmental Safety: Our Air Quality Monitor plays a crucial role in predicting and alarming the concentration of danrous gases, making it essential for maintaining a safe environment.