Flumsys 10TC-C7 The Flumsys 10TC digital controller with the innoSens 370 corrosion rate sensor measures both pitting and average corrosion rates. The Flumsys 10TC has a 4.3" colour LCD display with touch operation for easy set-up, data storage and USB stick export. The Flumsys10TC is supplied with three programmable relays and two 4-20mA outputs for control of auxiliary equipment, and Mdobus RTU (RS485) communication as standard.