EEVblog #267 - Voltage Detection Stick Teardown

http://www.idealindustries.com/prodDetail.do?prodId=61-025
http://www.google.com/patents/US5103165
It's Teardown Tuesday time.
Ever wondered what's inside those mains voltage detection sticks?
Dave cracks open an IDEAL VoltAware, and giggles at a patent.
Thanks to http://www.triosmartcal.com.au for the stick.