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New product designs endure extensive in-house and field testing before submittal to recognized independent laboratories for safety testing and approval. This commitment to quality ensures dependable, trouble-free products. SJE-Rhombus now offers an industry-leading five-year limited warranty on most standard catalog products.

Constant Pressure Controls
The variable frequency drives to automatically control the pump speed and maintain a constant pressure in the discharge pressure, irrigation, deep well and other applications at constant pressure.

Variable Frequency Drives

VARIOspeed® ECONO Controller
VARIOspeed® N1
VARIOspeed® 3R
VARIOspeed® LCD Drive
VFDC-4100 Controller

Endura™ MD

Customized Controls
Customized Controls by PRIMEX®, the SJE-Rhombus Engineered panel brand for Municipal and Industrial markets, are designed and manufactured to Customer's individual specifications for Municipal and Industrial Water and Wastewater applications. 


Industrial and Municipal Customized Controls

Standard Control Panels
SJE-Rhombus® control panels offer pump control and alarm notification in one convenient package for a variety of applications, including pump chambers, sump pump basins, irrigation system, lift station and more.

Build-A-Panel™ Control Panels

Model 112 Single Phase Simplex

Model 122 Single Phase Duplex
Model 312 Three Phase Simplex
Model 322 Three Phase Duplex
CE Rated Single Phase or Three Phase Control Panels
SJE Oil Spotter™ System

Tank Alert® Alarm Systems
Tank Alert® liquid level alarms visually and audibly warn of threatening liquid level conditions in lift pump chambers, sump pump basins, holding tanks, sewage and other non-potable water applications.

TAEZ-TAAB-LevelMonitor-Web.jpgTank Alert® AB - 120 VAC
Tank Alert® EZ (120V & 240V)
Tank Alert® EZ CE (240V)
Tank Alert® XT - 240 VAC
Tank Alert® XT - 120 VAC
SJE Level Monitor™ CL

Pump Floats
Wide-angle pump floats directly control pumps up to 3HP at 250 VAC. UL Listed, CSA Certified, CE Compliant.

Pump SwitchesSJE Quest® and SJE Quest® II
SJE MicroMaster®
SJE MicroMaster® Plus
SJE MicroMaster® SPDT

SJE PumpMaster®
SJE PumpMaster® SPDT
SJE AmpMaster®
SJE VerticalMaster® II
SJE VerticalMaster® II Plus
SJE HiTempMaster™

Control Floats
Narrow-angle control floats accurately monitor high (normally open) or low (normally closed) liquid level conditions to activate control panels and alarms. UL Listed, CSA Certified, CE Compliant.

Control SwitchesSJE SignalMaster®
SJE SignalMaster® SPDT
SJE MilliAmpMaster™
Sensor Float®
Sensor Float® Mini

SJE-Rhombus provides a variety of accessories to complete any on-site water and wastewater installation.

AccessoriesCable Weight
Cable Weight Mini
Cable Clamp Assembly
Float Brackets

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