A diaphragm switch or pressure switch works by activating a sensitive micro-switch when solid material reaches the level of the switch in the silo or bin. This point level sensor sends an alert that can be used for process control or alert to a high, medium or low-level. Commonly used in grain, feed, seed or other free-flowing granular material, BinMaster diaphragm switches are offered for either internal or external mounting. The switch is wired to a light, horn, alarm, or BinMaster point level alarm panel to indicate an alert status.

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