Indoor CO2 and VOC Alarm

Monitoring parameters

CO₂

VOC

Temperature

Relative humidity

Sensing element

Non-Dispersive Infrared Detector (NDIR)

Semiconductor mix gases sensor

Digital combined temperature and humidity sensor

Measuring range

0~2000ppm

0~30ppm

-20~60°C

0~100%RH

Display Resolution

1ppm

5ppm

0.1°C

0.1%RH

Accuracy@25°C(77°F)

±50ppm + 3% of reading

±10%

±0.5°C

±4.5%RH

Life time

15 years (normal)

5~7 years

10 years

Stability

<2%

——

<0.04°C

per year

<0.5%RH

per year

Calibration cycle

ABC Logic Self

Calibration ( No client

separate calibration)

        ——

——

——

Response Time

<2 minutes for 90% change

<1 minute

(for 10ppm hydrogen,

30ppm ethanol)

<5 minute

(for a cigarette)

in 20m² room

<10 seconds to reach 63%

Warm up time

2 hours (first time)

2 minutes (operation)

Electrical Characteristics

Power supply

100~240VAC

18~24VAC/VDC with the power adaptor available

Consumption

3.5 W max. ; 2.5 W avg.

Display and Alarm

LCD Display

Green CO₂<1000ppm (optimal air quality)

           VOC<10ppm (low pollution)

Yellow CO₂>1000ppm (moderate air quality)

            VOC>10ppm (medium pollution)

Red CO₂>1400ppm (poor air quality)

        VOC>20ppm (heavy pollution)

Two switch modes selectable:

both CO2 and VOC over the setpoints(default)

any one over the setpoint 

Conditions of Using and Installation

Operation conditions

-10~50°C(14~122°F); 0~95%RH, non condensing

Storage conditions

-40~70°C(-40~158°F)/ 5~95%RH

Weight

200g

Dimensions

130mm(L)×85mm(W)×36.5mm(H)

Installation

Desktop or wall mount (65mm×65mm or 85mmX85mm or 2”×4” wire box)

Housing IP class

PC/ABS, protection class: IP30