I feel like blindly using the Reading Ruler would be like spelling "disaster" in the dark, I can do it but I probably won't like the results. Of course, sometimes a job requires work in the dark (i.e. power outages, deadlines and more), and that's when this measuring tool would come in mighty handy.
Designed by Ho Sung-woon & Woo Moo-bum, the Reading Ruler is a compact gadget that features a digital display that reads out the units of measure. Check the Reading Ruler out in action in the video above.
Nighttime Measuring Tools
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