1200 Carbon Monoxide Monitor

Snif* technology and an LCD display

The LCD in these models will accurately read CO levels from 12 ppm to 250 ppm

Visual and audio alarms at 30 ppm, 60 ppm, and 120 ppm

1201 Carbon Monoxide and Methane Monitor

Adds methane capability with an LCD display and Snif* technology. 

The LCD in these models will accurately read CO levels from 12 ppm to 250 ppm and methane from approximately 100 ppm to 5000 ppm.

Visual and Audio alarms at CO level of 30 ppm, 60 ppm, and 120 ppm. Methane alarms at 5000 ppm.