Hed-dpl-301 portable Doppler flow meter is an instrument that uses ultrasonic principle ａnd Doppler effect to measure the flow rate of water. It is usually called a flow meter sensor. Doppler current meter is an ultrasonic current meter based on the principle of "Doppler effect". Ultrasonic technology is used to detect the flow velocity, the measuring point is in front of the body, ａnd the flow field is not damaged; It can measure both instantaneous velocity ａnd average velocity; No rotating parts, no fear of sand blocking ａnd water grass winding, the probe is strong ａnd durable.

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