The Amprobe CM100 is a compact carbon monoxide meter for measuring and displaying CO presence. It shows current CO levels on a dual LCD display and allows users to select the alarm trigger level from 8 preset levels (25 to 200 ppm). A published safety level chart helps set the alarm at safe limits.

Features include adjustable CO warning level, dual digital display, backlight for dim areas, auto power off, and self-test. The meter ships complete with battery, carrying case, and manual. It is suitable for indoor air quality monitoring, HVAC maintenance, and safety inspections.