The Gill® WindSonic is a low cost 2-axis ultrasonic wind sensor, providing accurate wind speed and direction data in a robust, lightweight package.
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When first starting out in the world of e-cigarettes, many vapers get confused about the two most popular types of e-liquid - propylene glycol and vegetable glycerin based.
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... Permatron offers a line of high efficiency odor, fume and gas removing activated carbon air filters that include bulk air filter media and pads cut to size, ...