Martech 75451 AirCheck Monitor with Built in Alarms - Continuous monitoring of the air you breath is available with this world-class sensor technology. It monitors for carbon monoxide and toxic hydrocarbons to provide complete protection. Also a built in system to monitor both high and low-pressure levels is standard. Complete with both audible and visual tri-color alarms. All housed in a rugged wall mount case. 120 VAC or 12 VDC.
