This document describes the ACM-WECX-12632 Nitrogen Dioxide Gas Monitor. It can detect NO2 levels between 0-20ppm. NO2 is a toxic gas produced by combustion that can cause respiratory issues. The monitor has features like an LCD display, alarms, output ports, and interfaces that make it suitable for monitoring NO2 levels in places like vehicles, industries, and buildings to prevent accidents. It is produced by Technologies Pvt. Ltd. and has applications in various sectors involving combustion.