I have returned the voltmeter

My time with the Ottawa Public Library's Kill-a-Watt meter has come to an end. It was fun and informative. My final measurement was of my stereo system while not in use. With all my components (amplifier, CD player, turntable) off, or rather on stand-by,  my stereo draws 17 watts of power.

I will have to re-order the meter from the OPL when I have more time.

The Kill-a-Watt meter is one example of a non book or other media item the OPL has available.

 

Take a look at http://biblioottawalibrary.ca/en/main/find/catalog/search/all/realia for more items.