Sentry RTUs have replaced expensive PLCs, chart recorders, PID and pump controllers, alarm dialers, and HMIs—saving thousands of dollars. Each RTU supports Ethernet, radio and cellular, as well as secure access by tablets, iPads, laptop computers and cell phones. Built-in configuration Web pages eliminate any programming software cost. More than five years of historical level, flow and totals can be recorded, locally graphed or output as spreadsheet files.

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