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Beginner (Installs < 10 minutes)
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USB Device that Improves Air Quality to Reduce Health Risks
AppliedSensor 77-0900 Indoor Air Monitor
AppliedSensor 77-0900 Indoor Air Monitor
AppliedSensor 77-0900 Indoor Air Monitor
Item# 90201
Price: Normally $40.00 
Hot Deal $32.31
Free shipping on orders over $175 - See Details


  • Easy to install - simply plug into an available USB port
  • Automatically analyzes the air and indicates when poor air quality is detected
  • Uses proven, reliable technology found in buildings and cars in the US and Europe for air quality control

Essential Info

Even low levels of Volatile Organic Compounds (VOCs) can cause serious health effects, especially for children, elderly people, and those with asthma and allergies. The Indoor Air Monitor detects even the smallest change in a room’s air quality, enabling users to take control of the air they breathe for a healthier home, office, car, or any other indoor space.

Simply plug the Indoor Air Monitor into a PC USB port in any indoor clean air environment and the unit will detect VOCs in seconds and rate the air quality. A green light indicates good air quality while a yellow light indicates fair air quality. If the light is red, Indoor Air Monitor has detected poor air quality and the room should be ventilated.



6 Ratings
5 star: 50%  (3)
4 star: 17%  (1)
3 star: 0%  (0)
2 star: 33%  (2)
1 star: 0%  (0)
Average Customer Rating
(6 customer ratings)
Share your thoughts with other customers
Angela Williams -- Florida   1/31/2014
This indoor Air Monitor is awesome and it works great. My father is having an allergie problem and it is very useful for us to monitor the air quality in our home. I have suggested about this product to my friends...Thank you.
DIMITAR -- jorlanda, XX   2/5/2012
Great tool and toy. Actually I used it more in R&D activities, and recommend it to my colleagues who was also impressed from size and functionality. Probably going to order some more.
Engineer -- Honolulu   4/25/2011
Download the optional software, it graphs a numerical measurement, with high resolution. the software also has the option of recording the data to a file. which I found useful for graphing longer periods for evaluation. Without software all you get is the red/yellow/green light If you want to test if the thing works, get a bottle of nail polish remover, or other suitable VOC source and allow the fumes to waft over the device, this was how I initially tested mine with nail polish remover. For identifying specific contaminants, I think it is unreasonable to expect this device to have that capability. it is small, cheap and does a simple task well. More complex air quality analysis would cost a lot more. Eventually sensor technology advances may render this obsolete by allowing differentiation of contaminants in this kind of package, but this device does what it claims - no muss, no fuss.
JAMES -- louisville, KY   4/18/2011
Works fine, reports overall air quality. Wish it would break-down pollutants by name/type (instead of giving a single numeric result), for instance, CO, CO2, Nat Gas, etc.
MICHAEL -- swansea, XX   4/3/2011
Expensive: can't really tell it it works because the light is always on green.
KATHLEEN -- coventry, RI   3/4/2011
I really like it but I wish it would give some information on the different colors. There's really nothing that explains the air conditions. I would even pay a little more if it offered more.

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