For most applications we typically use a 3″ Sensor head which fits into any 3″ Slip Style fitting.  Regardless of which controls are used this sensor will hold all the sensor tips for all the models.  This housing and the sensor lengths can be customized for your application. We have developed custom probes and assemblies for some OEM Customers under Private Label brands.
Standard Sensor assembly: 3” diameter and approximately 20” long.

Flow Diagram


Flow Diagram

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(right click image to download)

Download as PDF

Part Number is EXT
e.g. WLC-5000-110-EXT-50  Is a 5000 Controller with an external static pipe sensor and a 50 ft wire lead on the sensor.

The external static pipe is available for those who prefer the water level control probes be in view, it is a matter of preference. The standard lengths of the sensor rods are the same as the internal static pipe: 17, 16-3/8, 15-1/2, 14 & 10-3/8. These can be cut in the field by the installer to desired lengths but normally these are acceptable.

You can also get Custom Length Sensor Rods to fit any application. The sensor tip lengths are standard lengths but can be modified as needed for your application. You can find a sensor appendix here for ordering non-standard lengths also.

PROUDLY MADE IN THE U.S.A. blank

All of our liquid level controls and liquid level sensors are assembled right here in the U.S.A.
where we monitor every step of the process.

NOT SURE WHAT YOU NEED? JUST CALL BECAUSE WE’RE HERE TO HELP! 480-905-1892

We offer products comparable to the products offered by the above companies. See our website pages for further information on the products. The tradenames and trademarks in this page are owned by their respective companies or are the same name as the company. They are mentioned for comparison purposes only. They are in no way affiliated with System Dynamics, Inc or WaterLine Controls.