Extech Carbon Monoxide (CO) Meter

Checking co levels is as easy as pushing just one button on the model C010, which measures up to 1,000ppm. An audible indicator increases in tone starting at 35ppm. The higher the concentration of co, the faster the alarm will sound. Above 200ppm, the alarm will sound continuously. A backlight on the display can be used for low light areas. Additional features include: max hold, data hold, and auto-power-off. The meter comes complete with a 9v battery, protective holster, and case.