The wall mounted flowmeter is based on transit-time flow measurement principle. It measures flow rate of liquid in a closed pipe by using a pair of clamp-on or wetted ultrasonic transducers. In general, the liquid should be full of pipe, and should contain no or small amount of particles or air bubbles.
Up for grabs are these 22 rolls of Vinyl Electrical tape. Some of the rolls have never been used and a few of them have had just a little taken off. These came from a friend of mines Dad's estate sale, who was an electrician.
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