Extech Carbon Monoxide (CO) Meter have a Faster response measurements upto 1000ppm.An audible indicator increases in tone starting at 35 ppm. The higher the concentration of co, the faster the alarm will sound. Above 200 ppm, the alarm will sound continuously.
• Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm
• 1ppm resolution with ±5% or ±10ppm basic accuracy (whichever is greater)
• Utilizes a stabilized electrochemical gas specific (CO) fast response sensor
• Audible alarm starts at 35ppm
• Backlight for low light conditions