Box for a sensor program being run in Singapore by Roland Turner, Yahi - yet another hase index. The project is a community air quality measurement initiative to test haze across Singapore.
http://rolandturner.com/yahi/mapping-pilot

It uses a small sensing station that consists of a Shinyei PPD42NS/NJ dust particle counter paired to a Spark Core, (https://www.spark.io/).

The set consist of 4 files:

1. The case base - the base for attaching the sensors and spark core to.
2. The case cover - two versions of this are provided.
   • A solid version
   • A version that contains a small hole to insert the clear plug into. This clear plug shows the status of the spark core board. When the spark core connected to the Internet a led slowly 'breathes' in blue.
3. Washer - a small washer to attached the dust sensor with
4. Clear Plug - a small plug that fits into the cover to show the status sensor of the spark core board.
   The Case cover and Case holder are printed at 20% fill. Which ever colour you prefer
   Plug printed at 100# in clear (so the light shows through)

Assembly
The sensors kit can be purchased from 12 Geeks (http://12geeks.com/shop/yahi-sensing-station-kit-mapping-pilot-edition-assembled-and-tested.html)

• the sensor board slots onto the base and is affixed with the washer and a 3mm screw.
• the spark core is held in place with a cable tie.
  It is a pretty tight fit. The base will snap into the cover.