About Us

Since 1920 Cleveland Electric Labs has been an innovator always focused on meeting the temperature sensing needs of customers requiring quality assured thermocouples, precise temperature measurements and immediate service. With ISO accredited processes and production in greater Cleveland and Phoenix and with advanced thermocouple manufacturing techniques and specialization in precious metal and base metal thermocouples we serve customer temperature requirements from minus 300 degrees Fahrenheit to plus 4000 degrees Fahrenheit.

In addition to manufacturing mineral insulated thermocouples and hundreds of custom thermocouples, assemblies and configurations to meet customer needs, Cleveland Electric Labs also offers bare thermocouple wire, insulated thermocouple and extension grade wire and virtually every type of related connector, fitting, ceramic and metal protection tube, RTD sensors and thermowells.

If you require process heat sensing, product certification and calibration excellence that meets ISO standards or an innovative solution to temperature control, Cleveland Electric Laboratories can meet your needs.

Cleveland Electric Labs Test Cell Instrumentation R&D Facility located in Tempe AZ is dedicated to turbine engine testing, and is CEL second thermocouple manufacturing center. With a staff exceeding 26 persons, company instrumentation engineers, and production specialists, design, manufacture, fabricate and repair products for turbine engine testing. Company turbine expertise includes those used in aircraft, power generation plants, ships, heavy equipment, and turbo- chargers. Products include temperature and pressure sensors, rakes and probes, high speed slip ring assemblies, strain gages, fiber optic sensors and data acquisition systems. CEL Machining Services Center, a sister company located in Phoenix, supports the precision production needs of test cell instrumentation customers.

In late 2007, with the acquisition of the Machining Service Center ( formerly American Tool & Die) and company acquisitions of GSE tool drawings, manuals and technical manuals, CEL now serves the turbine engine testing, maintenance, repair and overhaul market worldwide. Our expanded marketing, design, prototype and production machinist staffs can meet the tool design, and production needs for any turbine APU and fan engine.

The Cleveland Electric Laboratories Company Inc. was founded in 1920 to provide repair service of electric meters for railroad and Cleveland industries. When formal Ohio Corporation papers were filed in 1930, we were already supplying temperature instrumentation, calibration and on-site service for steel and heat treat companies in Ohio. The company continued to grow in sales and employment by adding the manufacture of thermocouple sensors and components, platinum thermocouple wire, and new industrial temperature control products.

In 1954, Frederick J. Lieske, an employee of CEL for 12 years, became owner and President. He successfully grew the company until his passing in 1984. Fred’s son, Jack Lieske, was appointed President of the family-owned business in 1981

Cleveland Electric Laboratories will serve our customers with the highest level of customer satisfaction, providing price competitive products developed and delivered on time by our innovative, talented, dedicated and empowered workforce.