Features • Advanced MCU control with low power consumption. • Large LCD display. • Adjustable low and high alarm level . • High concentration protection for combustible gas. • Self test for the combustible gas sensor. • Low voltage alert. • Real time clock display. • Replaceable sensor module. • Self-adjustment function. • Visual and audible alarm with vibration. • Data logging and uploading. • STEL and TWA alarming for toxic gases. • Advanced self-examination and self-renovation function. • Password management to avoid wrong operation. • Intrinsically safe design.