Subsequent to supplying thermal based reactor core cooling sensors to the nuclear market, a simple liquid level switch was introduced to the process industries. Applications in tank, vessel, and sump liquid level detection provides for safe process operations avoiding spills and overflows.

Flow switches for liquid and gas applications soon followed the level switch products. Pump protection and assuring flow/no flow in various industrial processes expanded the Delta M product reach.

Through acquisition, Delta M expanded their Thermal Device Product offerings to include Mineral Insulated Cable (MIC) production and an array of specialized thermocouple fabrication. Small diameter (< .032 inch) thermocouples are fabricated for individual use or drawn into multipoint assemblies for various applications in industry, turbine testing, and research.