TPI PGM100 Personal Carbon Monoxide Gas Monitor is an extremely robust carbon monoxide meter with audible, visual, and vibrational alarms. The TPI PGM100 personal CO gas monitor is made out of tough ABS plastic, is IP65 rated, and is simple to operate with just a power button and zeroing/calibration button. The TPI PGM100 personal carbon monoxide monitor’s LED light is bright enough to seen even in sunny environments and features a sturdy suspender clip on the back of the instrument. The TPI PGM100 CO monitor is designed to run for 2 years of continuous use and its on-board memory will store up to 100 events or alarm conditions. Alarm events can be downloaded later using SCal-100 SmartLink software.