Coping Saw, has a sturdy steel frame. Blade tension is achieved by turning the wood handle. Easily adjustable blade fixtures and an extra narrow specially hardened blade are among the features. The blade has 5 points.
Anemometer, measure wind speed in a variety of experiments. Hold the sensor in your hand to measure wind speed in dynamic environments or use the accessory rod to position it in front of wind tunnels or fans, standard camera mount on the back.