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White rectangular air quality monitor with colour screen and audible alarm

22 HOBBIES AK3 control sensor 1200 mAh battery 1.25 x 2.63 x 3.86 in 0.41 lb

SKU CH-0BAN-70TQY MPN AK3

Monitors indoor CO₂, TVOC, formaldehyde, temperature and humidity with a colour display and audible alarm, running 9–10 hours on a 1200 mAh battery

  • Item name22 HOBBIES AK3
  • Overall size1.25 in × 2.63 in × 3.86 in
  • Item description22 HOBBIES, AK3, Audible, Battery Powered, 1.25 L x 2.63 W x
  • Additional notesAudible, 22 HOBBIES, AK3, KQ-1, 1.25 L x 2.63 W x 3.86 H inc
  • Design styleModern
  • Product weight0.41 lb (0.19 kg)
  • 8-in-1 monitor tracks CO₂, TVOC, HCHO, AQI, temperature & humidity
  • High-accuracy sensor delivers 0.5% measurement precision for reliable readings
  • Colour display shows five real-time metrics with colour-coded air-quality levels
  • Built-in 1200 mAh battery runs 9-10 hours and recharges in 3-4 hours via USB-C
  • Compact 1.25 x 2.63 x 3.86 in design weighs 0.41 lb for easy portability

Indoor air monitor with 1200 mAh battery

The 22 HOBBIES AK3 measures AQI, CO2, HCHO, TVOC, temperature and humidity in real time. A built-in 1200 mAh battery provides 9-10 hours of continuous use and recharges in 3-4 hours via Type-C. The compact white unit weighs 0.41 lb and fits on a desk or shelf. An audible alarm sounds when readings exceed safe thresholds.

Home owners and office workers tracking air health

Suits anyone who wants immediate visibility of five air-quality metrics without a permanent installation. The portable design moves between rooms, a car or a hotel. Buyers who need logged history, wireless alerts or multi-room coverage should look at a different class of device.

0.5 % measurement accuracy

The sensor chip delivers 0.5 % accuracy across all monitored parameters. This single figure determines whether the AK3 meets the precision required for your specific health or compliance needs.

How it compares

Measured against everything we stock in Sensors, Buzzers & Control Modules, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 62% of the 89 comparable items (median $29.99).

Specifications

Product
Brand name22 HOBBIES
Model nameAK3
Item name22 HOBBIES AK3
Design styleModern
Size & build
Overall size1.25 in × 2.63 in × 3.86 in
Product weight0.41 lb (0.19 kg)

Questions about this item

How long will the 1200 mAh battery run the monitor between charges?

The built-in 1200 mAh battery provides 9-10 hours of continuous operation and takes 3-4 hours to recharge via the included Type-C cable.

What connection does the Type-C cable use for charging and data?

The supplied Type-C cable handles both charging the internal battery and data transfer when linked to a computer or power source.

Will the 1.25 x 2.63 x 3.86 inch case fit on a standard bookshelf?

At 1.25 in deep, 2.63 in wide and 3.86 in high it sits easily on any shelf, desk or countertop without overhang.

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