ACI Controls partners with M4 Knick to deliver smart liquid analysis technology for manufacturers and municipalities. Our sensor, transmitter, and holder offering work together to form an advanced measurement loop. Components may also be purchased individually.

Since 2013, M4 Knick has helped manufacturers, OEMs, and municipalities solve difficult liquid analytical measurements. In a world where every dollar and hour spent matters, M4 Knick provides you with reliable measurements and dependable service so that you can focus on the issues that deserve your time.

Featured Products 

ACI offers a wide variety of M4 Knick products.   




INTRODUCING Memosens Smart Digital Technology

Memosens® is a digital connection and communication protocol for analytical sensing technology. The hermetically sealed, galvanically isolated, inductive connection ensures a quality signal. Calibration and sensor conditions are monitored and stored in the sensor head.  We provide digital sensors that deliver sensor health data, eliminate interference, and last longer. Knick Memosens sensors make liquid analysis easier, safer, and more reliable.

  • Disturbance-free data transfer with inductive electrical connection?
  • Increased accuracy with offline calibration process?
  • Eliminates external interference via digital communication?
  • Corrosion-free hermetially sealed sensor head



Inductive Technology: Changing the World of Liquid Analytics

Common issues with analog technology are signal leakage, noise from electrical interference, and ground loops.

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Bio-Fermentation in the Pharmaceutical Industry

Measuring pH and dissolved oxygen are essential measurements in the bio-fermentation process. The intended molecular reactions that produce the extricable material are heavily dependent on both pH and dissolved oxygen (DO) values.

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