AQ Guard– Portable optical particulate idoor air monitor

AQ Guard– Portable optical particulate idoor air monitor

Portable optical light scattering dust monitor for indoor using. The instrument is able to measure TSP, PM10, PM4, PM2.5 a PM1 + particle number cocentration.

Technical parameters

Measuring parameters

TSP, PM10, PM4, PM2.5, PM1 and particle number concentration (P/cm3); options – sensors TVOC and CO2

Principle of measurement

Optical scattering of white light

Light source

LED lamp

Number of size channels

64 / decade (128 in total)

Measuring range (particle number concentration)

0-20000 (P/cm3)

Size range

0,175 – 20 µm

Measuring units


Response time

1 s

Power consumption

˂ 60 W

Sample flow rate

1 l/min


3,9 kg

Control unit

Touch screen 5‘‘

Operation temperature

-20°C - 50°C


240 x 320 x 190 mm (H x W x D)


External check of calibration on site possible


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