Tongdy Control Technology Co. Ltd

We are offering co2, voc, temperature, humidity monitor, alarm. features design for real time detection indoor air quality ndir infrared co2 sensor with special self calibration makes the co2 measurement more accurate and more reliable. more than 10 years lifetime of co2 sensor more than 5 years lifetime of semi-conductor tvoc (mix gases) sensor digital compositive temperature and humidity sensor with more than 10 years lifetimethree-color (green/yellow/red) lcd backlit indicating optimal/moderate/poor ventilation two alarm ways: buzzer alarm and backlight colours switch provide optional 1xrelay output to control a ventilatorthe touch button for easy operation excellent performance for iaq detection and monitoring in home and office220vac or 24vac/vdc power selectable; power adaptor available; desktop and wall mounting type availableeu standard and ce-approval monitoring focuscarbon dioxide (co2)indoor co2 level is a universal accepted parameter for the condition of indoor ventilation and air quality. A time period can be preset from 1 to 24 hours, e.g. 5 hours, then the monitor can display co2 average level during this period, which provides an objective and true data for the measurement of the air quality in a certain space. non-dispersive infrared (ndir) co2 sensor with more than 10-year lifetimeabc self-calibration technology guarantees reliable co2 measurement co2 range: 02000ppm/05000ppm optionalrapid response, high stability and consistency mix gases (tvoc-total volatile organic compoundvoc emitted from building materials, decoration materials and furniture, includes toluene, ammonia, h2s, formaldehyde and other harmful gases. Its necessary to real time detect these harmful gases. But its costly to use the professional instruments to detect each single gas. Also its possible to monitor for daily use. These gases exit in air for a long time and their volatilization level are different in different temperature and humidity, the reliability of such detection by a professional instrument for a single gas is very limited. This multifunction iaq monitor uses a mix gas sensor. It has high sensitive to kinds of volatile pollutant gases (voc) such as ammonia, toluene, formaldehyde and cigarette smoke, alcohol, h2s, and carbon monoxide. So it is very suitable to monitor the general indoor air quality in real time and long term. The mix gases sensor responds quickly to any change of the concentration of such gases. Not only you may open windows for fresh air coming but also the monitor can control a ventilator/air-cleaning devise based on the indication and alarm. built in the semi-conductor mix gases sensor57 years life timehigh sensitive to volatile gases like ammonia, toluene, formaldehyde, sensitive to cigarette smoke, alcohol, h2s, etc. small volume, lower consumption temperature and humidity switzerland digital temperature/humidity sensor built in with high accuracy and stability. It also has compensation to co2 and tvoc which makes the measurements more accurate by minimizing environmental effects. lcd display applicationnew g01-co2 b5 monitor/alarm is used to monitoring room co2 and voc, as well as room temperature and humidity. It detects and monitors indoor iaq level. It provides one on/off output to control a ventilator according with the co2 or voc measurement or according with both of them. it provides both buzzer alarm and three colors backlit switching alarm. hotel, exhibition hall, hospital, shop, restaurant, air port, train station, theater and other public placeshouse, villa, office, meeting room, classroom and other roomsall ventilation systems specifications monitoring parameters co2 tvoc temperature relative humiditysensing element non-dispersive infrared detector (ndir) semiconductor mix gases sensor digital combined temperature and humidity sensormeasuring range 05000ppm 030ppm -2060 0100%rhdisplay resolution 1ppm 5ppm 0.1 0.1%rhaccuracy@25(77) 60ppm + 3% of reading -------- 0.5 4.5%rhlife time 15 years (normal) 57 years 10 yearsstability.