SJE-Rhombus (S.J. Electro Systems, Inc.) was founded on July 2, 1975 by Steve Johnston. Steve wanted to develop a way to warn Minnesota residents when their septic system holding tank needed pumping. The pioneering efforts of Steve brought forth the first Tank Alert® alarm and Sensor Float® control switch. Today, over 35 years later, SJE-Rhombus has grown into a leading manufacturer of reliable, trouble-free liquid level controls for the water, wastewater and sewage industries throughout the United States and Canada, as well as into global markets.
SJE-Rhombus offers a wide variety of control products for residential, commercial, municipal, and industrial markets. From control panels utilizing embedded circuit board technology, to complete control and monitoring systems designed and built to individual specifications, SJE-Rhombus represents the most reliable integration of engineering and manufacturing capabilities in the industry.
New product designs endure extensive in-house and field testing before submittal to recognized independent laboratories for safety testing and approval. Each product is constructed of materials of the highest quality with expert workmanship and delivered in responsive lead times. This commitment to quality ensures you a dependable, trouble-free product. SJE-Rhombus is so confident in the superior quality and performance of our controls, that nearly every catalog product leaving the factory is backed by a five-year limited warranty.......[More Detail]
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- 22650 County Highway 6, PO Box 1708 Detroit Lakes, MN 56502 USA