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An intervalometer is usually a handheld device with a long cord that plugs into a cameraâs auxiliary port. It looks and works very similar to a remote trigger release. The type of intervalometer youâll need depends on your type of camera.
An anemometer measures wind speed. It also can be attached by electric wires that transmit the varying speeds, wind speed changeds during the day with wind gusts, and recorded on a cylinder with graph paper showing the numbers or values of that wind speed. a windometer, a large tubular device 20 ft long and one foot high.