• SJE-Rhombus SES Controls SES Controls for Residential and Commercial Applications
  • SJE-Rhombus Municipal Control PRIMEX Municipal Water Control Solutions
  • SJE-Rhombus Engineered Controls Custom Designed Solutions for Commercial, Municipal and Industrial Applications
  • SJE-Rhombus Embedded Controls Custom Electronic Control Solutions for OEM Applications

News & Events

April 9, 2014
EZ Series® Plugger Post Provides Easy Pump Wiring Connection   Read More

March 20, 2014
SJE-Rhombus Introduces Relay Logic Series™ Control Panels   Read More

March 10, 2014
SJE-Rhombus Announces Alarm Challenge Winners   Read More

More News & Events moredivider

Tank Alert® EZ Alarm System

Overview of the Tank Alert® EZ Alarm System

Indoor/Outdoor Tank Alarm Monitors Two Alarm Conditions


Tank Alert® DUO

Tank Alert® alarms provide audio/visual warning of potential threatening liquid level conditions. Read More Read More



Enter your email to join our mailing list for product news and promotions.


Welcome to SJE-Rhombus®

Why Choose SJE-Rhombus?

SJE-Rhombus® provides smart solutions to today’s growing environmental challenges. We combine our 35 years of expertise in pump controls with the latest technology to deliver energy efficient, cost-effective products for a wide variety of residential, commercial, municipal, industrial and agricultural applications. 

No matter the application, SJE-Rhombus has a control solution to fit your needs, whether it's a simple float switch or septic alarm system to control panels using embedded circuit board technology for advanced programming and monitoring of your system.  And if we don't have it in our standard catalog, we can design and build a custom solution to meet your exact specifications.

USA  French Canadian  Chinese

French  German  Italian  Spanish