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The wireless automatic sprinkler dust suppression device main unit is the core control component of the mine-used wireless automatic sprinkler dust suppression system. It is mainly composed of a mine-used intrinsically safe box, a wireless signal receiving module, a battery pack, an electromagnetic valve control unit, and a liquid crystal display panel.link:https://www.rlycn.com/mining-spray-dust-suppression-system/dust-suppression-system-main-units-and-accessories/zp12-z-wireless-automatic-spray-host-unit.html