Atmel recently published a full one on one interview with Eric from mkme.org on the Gas Sensor for Emergency Workers
Atmel states:
“Confined spaces can be a dangerous part of rescue work, especially for miners and firemen. Not only do they have to worry about walls caving in and trapping people, but hazardous gasses. And while there are several expensive robotic devices out there that can take gas sensors deep into these tight areas ahead of rescuers, Eric William has come up with a much cheaper, more efficient alternative to remotely sniff the air before entering. The Maker has developed a $30 gas sensor “grenade” using a basic Arduino and a few other components, which is capable of analyzing the environment and reporting its levels with real voice output.”
Check out the full interview HERE
Here is the project video: