FIRE ALARM unit - Fault finding and battery test | Thomas Nagy

Dave and I tested a fire alarm unit at an Amnesty Bookstore in Hammersmith. Took a while to get down to the source of the problem, but I eventually found it (amidst a pile of rat shit). I'm also explaining a little bit on testing batteries as lots of people were interested in the comments.

Here a link to a similar model of the battery tester I used:

http://bit.ly/2OcT5pH

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Thomas Nagy

WARNING:
This video is for entertainment purposes only. If you use the information from this video for your own projects then you assume complete responsibility for the results.