The MUYA WT8825 is a portable, multi-scale carbon monoxide monitor that reports readings in ppm, %VOL, %LEL, and mg/m3 for flexibility across industries like petroleum, papermaking, and fire safety. It measures up to 1000 ppm (2000 ppm overload) with sub-30-second response and reliable operation from -30C to +50C. A large backlit LCD with MAX/MIN hold plus combined voice-and-light alarms make it easy to use in the field on standard AAA batteries.