[1] www.health.ny.gov/environmental/emergency/chemical_terrorism/ammonia_tech.htm
[2] https://www.scribd.com/doc/6846793/Bioinstrumentation
[3] http://playground.arduino.cc/Main/MQGasSensors
[4] https://www.sainsmart.com/sainsmart-mq137-ammonia-detection-sensor-nh3-gas-sensor-module.html
[5] http://www.maskau.dk/WP/wp-content/uploads/2014/08/MQ137.pdf
[6] https://store.arduino.cc/usa/arduino-leonardo-with-headers
[7] http://www.instructables.com/id/Powering-Arduino-with-a-Battery/
[8] https://en.wikipedia.org/wiki/Gas_detector
[9] http://www.atmel.com/dyn/resources/prod_documents/doc2549.pdf\(datasheet ATMega)
[10] https://www.slideshare.net/doctorrao/sterilization-of-o-t?from_m_app=android
Tarun George Maddila 1, Dr. Rajeev Rao 2
PSG College of Technology,
Coimbatore, India 1
Jubilee Mission Medical College and Research Centre,
Thrissur, India 2
tarungeom@gmail.com, drrajeevrao@gmail.com