These products can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP),
which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov

CTCII Conductivity/TDS Chemical Treatment Controller / Cooling Tower Controller
Click here for detailed image



  • 0-5000 microsiemens or ppm

  • IP65/NEMA 4X water resistant & corrosion proof enclosure

  • Clear, screw down lid allows great visibility while discouraging unauthorized adjustment

  • Comes complete with an easily installed CSAR sensor, or for those more demanding jobs, the optional CS51R sensor

  • Single set point/alarm

  • Easy knob adjustment of set point

  • LED shows “above/below” Alarm/control status

  • 10 amp relay operates on increasing reading

  • Adjustable set point

  • Automatic 25°C temperature compensation

  • Includes power cords
    - One (1) input power cord
    - Two (2) output plugs

  • Selectable 115/230 VAC


    Some options include:
    - 3½ or 4½ Digit Backlit LCD
    - 4-20 mA Output Module
    - 24 VAC Isolated Power
    - 24 VDC Isolated Power
    - CS51R sensor


   Save Money & Time:

  • Decrease downtime

  • Increase system life

  • Increase number
    of cycles

  • Reduce wastewater discharge

for Chemical Treatment -
excellent for
Cooling Towers


The unique circuitry of the CTCII™ Chemical
Treatment Controller guarantees accurate and reliable measurements.
Drift free performance is assured by “field proven” electronics, including automatic DC offset compensation and highly accurate drive voltage.


Since Temperature Compensation is at the
“heart” of accurate water measurement, all MyronL CTC
II controllers feature a highly refined and precise TC circuit. This feature perfectly matches the

water temperature coefficient as it changes. All models corrected to 25°C.

Standard on all models are two heavy-duty 10 amp output relays, operating on increasing readings. Bright red/green LED indicates above or below set point values.


All CTCII models feature a compact IP65/ NEMA 4X water resistant and corrosion proof rated enclosure 4.7 x 6.3 in./120 x 160 mm. They are suitable for bench or surface mounting.



  • CTCIIT (with Limit Timer)

  • CTCIID (with 3½ Digit LCD)

  • CTCIITD (with Limit Timer & 3½ Digit LCD)

*Custom and OEM Models


Additional Information
CTC II™ Data Sheet
(includes specs, options & order info)

click here: PDF

Price List

click here: PDF

Conductivity Sensor - CSA Series

click here: PDF

Conductivity Sensor #CS51

click here: PDF

Flow Switch™

click here: PDF

Operation Manual

click here: PDF


Limited Warranty

All Myron L® CTCII Controllers and sensors have a Limited Two (2) Year Warranty. If any controller or sensor fails to function normally, return the unit to the factory prepaid. If, in the opinion of the factory, failure was due to materials or workmanship, repair or replacement will be made without charge. A reasonable service charge will be made for diagnosis or repairs due to normal wear, abuse or tampering. Warranty is limited to the repair or replacement of controller or sensor only. The Myron L® Company assumes no other responsibility or liability.


                      Site last updated on: 30-Apr-2008 

Literature or RMA Request | Warranty | Site Map | Feedback

© 1999-2013  Myron L® Company.  All rights reserved.
Copyright, Disclaimer, Privacy Policy and Terms of Use