If you’d like to try an alternative to classic porcelain, then Tonda is the perfect complement to your home.


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Since 1943, our single focus has been on designing and manufacturing the finest temperature measuring products availableā€”for every industry.

In addition to our thousands of standard sensors, we offer custom engineering for process measurement and control. Whatever specialized temperature measurement component you need (thermocouples, RTDs, thermistors, etc.), our experienced engineering team can provide a customized solution that works. Our versatile manufacturing and precise machining allow us to efficiently produce virtually any temperature sensor. To customize a product or develop something completely new for your distinctive application, use the Build a Custom Sensor Form or contact us at sales@edl-inc.com. We look forward to working on your unique temperature solution.

dsc_0726 DSC_8785 interchangeable sensors in hand

Our Services

Since we began operations in 1943 focused on manufacturing temperature monitoring equipment, we provided calibration services deeply rooted in the science of metrology. Initially, we only serviced the products we created. But as our reputation for quality, integrity, and an excellent customer experience grew, we expanded the breadth and depth of services we offer to meet a variety of industry requests. Today, we are proud to complement our meticulous engineering and manufacturing with extensive service offerings.