Showroom shelves of AirSonde air quality monitors, lit from above, with closed wooden cabinets below

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AK4 - Indoor Air Quality Monitor (CO2, TVOC, HCHO, Temperature, Humidity), NDIR Infrared CO2 Sensor1 / 5

AK4 - Indoor Air Quality Monitor (CO2, TVOC, HCHO, Temperature, Humidity), NDIR Infrared CO2 Sensor

Desktop
Measures
CO₂HCHOTVOCTemperatureHumidity
Specifications
Form factor
Desktop
Dimensions
98 × 32 × 67 mm
Net weight
206 g
Carton size
425 × 375 × 310 mm
Carton qty
50 pcs
Lead time
35–45 days
Certification
CE/FCC/ROHS/UN38.3

What it is

The working details

  1. 01

    The AK3 With Its CO₂ Sensor Upgraded

    Same 98 × 32 × 67 mm body, same five readings, same 50-per-carton pack. The one change is the CO₂ channel: a semiconductor element becomes infrared NDIR.

  2. 02

    What Infrared Changes

    NDIR reads how much infrared light the air absorbs, instead of how a heated surface reacts to it. It does not drift with humidity and is not thrown by alcohol gel, perfume or cleaning spray — the three things that most often corrupt a semiconductor reading.

  3. 03

    A CO₂ Figure You Can Quote

    Where a semiconductor tells you the direction, NDIR gives you a number stable enough to put in a ventilation assessment and compare month to month. TVOC, formaldehyde, temperature and humidity continue alongside — five readings in total, nothing traded away.

  4. 04

    1200 mAh, 6–8 Hours

    Three-hour USB charge, all-day runtime, 206 g with the lanyard fitted.

  5. 05

    Stock It Beside AK3

    Shared enclosure, colour box and carton spec — 50 pcs per box, 25,000 units per 20 ft container — so the accuracy tier costs you no extra shelf planning.

OEM & ODM

Make AK4 yours.

How it works →
Sensor set
Boot screen & UI
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Box & manual

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