This is a rain gauge that emits electrical pulses that are sent to a tachometer sensor (included) that is calibrated to measure precipitation in mm.
It is based on a funnel that is emptied into an interior container that tilts when filled with the equivalent of 1 mm of precipitation, emitting a pulse. It is supplied with a 10 m cable that ends in a 3.5 mm jack that connects to the tachometer sensor and this in turn to the console.
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