Carbon Dioxide Monitor and Data Logger

The AQM-102 is designed to measure CO2 concentration,

air temperature and relative humidity with visible and audible

alarms. This CO2 monitor is an ideal instrument for indoor

air quality (IAQ) diagnosis and HVAC system performance

verification.

Carbon dioxide (CO2) is a gaseous component of the earth’s

atmosphere. The concentration of CO2 in natural ambient

air is about 0.04% or 400 ppm. With each breath, humans

convert oxygen (O2) into carbon dioxide (CO2). Although

carbon dioxide is invisible and odorless, increased CO2

levels can cause headaches, drowsiness and a loss of the

ability to concentrate or worse.

SPECIFICATIONS

CO2

Measurement Range: 0 to 9999 ppm

Accuracy: ±30 ppm, + 3% of rdg

Resolution: 1 ppm

Temperature

Range: -40 to 85ºC (-40 to 185ºF)

Accuracy: ±1.2ºC (2.2ºF)

Resolution: 0.1ºC (0.1ºF)

Relative Humidity

Range: 0.0 to 90% RH

Accuracy: ±3% RH [at 25ºC (77ºF), from 10 to 90 RH],

±5% RH beyond 10%

Memory Capacity: 32,000 readings

Storage Temperature: -40 to 70ºC (-40 to 158ºF)

Interface: USB

Dimensions: 110 H x 108 W x 28 mm D

(4.33 x 4.25 x 1.10")

Weight: 165 g (5.8 oz)

Non-Enforced Reference Levels*

250 to 350 ppm – Background (normal) outdoor air level

350 to 1000 ppm – Typical level in occupied spaces with

good air exchange

1000 to 2000 ppm – Level associated with complaints of

drowsiness and poor air

2000 to 5000 ppm – Levels associated with headaches,

sleepiness and stagnant, stale,

stuffy air; poor concentration, loss of

attention, increased heart rate and

slight nausea may also be present

>5000 ppm – Exposure may lead to serious oxygen

deprivation resulting in permanent

brain damage, coma and even death