Feature●Simple installation and maintenance, long life.●4...20mA signal output, measuring range-distance is 10m.●The beam angle is small, the energy is concentrated, and it has stronger anti-interference ability, which greatly improves the accuracy and reliability of the measurement.●Working around the clock, continuous online collection.●Wireless transmission, no need to dig cable trenches, no impact on channel lining, tree planting and other engineering construction.Description