AMPROBE CO2-200 Carbon Dioxide Meter,380 to 2000 PPM

Amprobe CO2-200 - Wall Mounted Carbon Dioxide Meter Triple displays of CO2 level, temperature and humidity Stable NDIR sensor for CO2 detection Statistics of weighted averages (TWA & STEL) Visible and audile CO2 warning alarm Alarm output for ventilation controlThe Amprobe CO2-200 measures CO2 level, air temperature, dew point, wet bulb temperature and humidity and is an ideal instrument for indoor air quality (IAQ) diagnosis. Poor indoor air quality is considered unhealthy because it causes tiredness, loss of ability to concentrate, and even illness (ex. Sick Building Syndrome). IAQ monitoring and survey, especially on CO2 level and air ventilation become widely applied in public areas such as offices, classrooms, factories, hospitals and hotels.

It is also suggested in regulations of industrial hygiene in some countries. With an NDIR (non-dispersive infrared) sensor used, this CO2 meter is stable in long term monitoring. And the built-in relay for alarm output is especially useful in ventilation control and HVAC system performance verification. Alarm OutputThe meter features visible and audible alarm to give warnings when CO2 concentration exceeds the limit. Users can set up 2 limits: An upper limit for alarm threshold that requires air conditioning and a lower limit to stop the alarm. (See P 1.0 in setup for setting alarm limits). It emits beeps (approximately 80dB) with blinking LED when CO2 level goes over the upper limit. Beeps can be stopped by pressing any key or automatically stops when CO2 reading falls below lower limit. If the beeper is temporarily shut, it will sound again when readings fall below lower limit and then go over the upper limit again, or users press 'RESET' for more than 1 second to activate it. LED alarm keeps blinking when beeps are manually shut. It stops only when readings fall under the lower limit. The meter is designed with a relay to send output for further connectio