Accurate Carbon Monoxide Detection - Keep your home, office, or workshop safe with real-time CO readings from 0 to 1, 000 ppm. The Extech CO15 delivers professional-grade accuracy so you can monitor levels confidently
 Peak Hold Function - Never miss a dangerous spike! This feature captures the highest CO concentration detected, helping you identify intermittent leaks or hazards over time
 Adjustable Alarm Alerts - Customizable audible alarm warns you when CO levels exceed safe limits, offering peace of mind and early detection to prevent potential health risks
 User-Friendly Backlit Display - Large, easy-to-read backlit LCD allows clear monitoring in dimly lit areas like basements, garages, or boiler rooms, making it convenient for home or professional use
 Portable & Battery-Powered Design - Lightweight, compact, and powered by standard batteries, the CO15 is ideal for portable inspections, HVAC maintenance, or quick safety checks anywhere CO may be present