Extech CO15 Carbon Monoxide Meter, Green

• Dual LCD simultaneously displays carbon monoxide (CO) level and maximum CO reading taken since meter is powered on
• Long life electrochemical sensor
• Adjustable CO warning level at 25, 30, 35, 45, 50, 70, 100 and 200Ppm (alarm is pre-set to 25Ppm)
• Audible and visual alarm when CO level reaches the warning set point level
• Choose from 3 calibration points: 0 (pre-set), 100, and 500Ppm

With the CO15, checking Co levels is as easy as pushing just 1 button on the CO15 CO15, which measures up to 999Ppm. An audible alarm indicator will continuously beep starting at 25Ppm (pre-set warning level - value can be adjusted) and the display will flash until the Co level goes down to normal range. A backlight on the display can be used for low light areas. The meter comes complete with batteries, wrist strap, and pouch.