The M4i-RTU is an integrated solution for up to 8 Memosens sensor inputs using MemoRail Modbus transmitter(s) and Modbus display scanner(s).

• Scans up to 16 Modbus process variables per display for pH, ORP, conductivity, oxygen, and sensor diagnostics.
• Free PC-Based, On-Board, ScanView USB Programming Software

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The M4i-420 is an integrated solution for up to 4 Memosens sensor inputs using MemoRail transmitter(s) and an analog 4…20 mA display.

• Easy field scaling for pH, ORP, COND, DO measurement without applying an input
• Free PC-Based, On-Board, MeterView Pro USB Programming Software