EchoTREK transmitters help to optimize operations at a concrete manufacturing plant One of our prospective customers asked for a quotation for replacing an out-of-date level metering system (pro- duced by one of our competitors) for controlling the level of sand, cement and different types of gravel in segmen- ted silos. In addition to this, the system has to ensure safety with a fail-safe high level indication, even in the case of a failure of

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