A $40 laser tape measure supplied by gearbest.com which has an accuracy of +/-2mm. It works remarkably well in bright daylight although it helps to use a tripod when measuring long distances.
Product link (gearbest.com):
80M LCD Display Laser Distance Meter Digital Range Finder Laser Tape Measure with Bubble Level
http://goo.gl/4eHD88
Note: some items in this video were supplied at zero cost.
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https://www.youtube.com/watch?v=JSg2DkWPyJE
The ThruNite TC10 LED torch survives being frozen for several hours and then dropped from 2 metres. Then some comparisons with an incandescent torch at night over a range of distances.
Official Store: http://www.thrunite.com/thrunite-tc10/
Amazon US: http://www.amazon.com/dp/B00S4HUZVK/
Amazon CA: http://www.amazon.ca/dp/B00S4HUZVK/
Amazon Germany: http://www.amazon.de/dp/B00S4HUZVK/
Amazon UK: http://www.amazon.co.uk/dp/B00S4HUZVK/
Amazon Italy: http://www.amazon.it/dp/B00S4HUZX8
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https://www.youtube.com/watch?v=h-YttRmarFQ