DescriptionAdvanced digital proportional dosing pump system with an LCD display suitable for pH/Redox control.Features Digital peristaltic pump with built in pH/Redox controller pH or mV ( Redox ) control selectable by software 3 Function modes: Constant, ON/OFF, proportional Programmable overdose timer alarm Start up delay LED and LCD display: status and programming Over and under range alarm Including SCHUKO plug Flow switch input On/off switch