Hydrometer - Humidity measurement
Description
An instrument built to measure humidity You need: rubbed with alcohol human hair 150mm toothpick - 2 round bamboo sushi sticks - 2 M3 nut - 5 M4 nut - 1 M3 20mm screw - 1 M3 30mm screw -1 M3 scrap screw 15mm - 1 Assembly: 1.Set scale 2.Glue the top and the bottom 3.Install weights on the arrow 4.Attach hair as pictured 5.Assemble with screws arrow and up tuning system (For commit hair you need to use toothpick ends)
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