HSI Sensing

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HIS Sensing began manufacturing reed switches in 1968. Continuous growth and facilities expansion have characterized the past 35 years. The company provides custom switching and sensing solutions. It manufactures reed switches and proximity sensors. These devices complete electrical circuit paths when magnetism is placed in close proximity to the switch or sensor. HIS Sensing manufactures reed switches small enough to fit inside a heart pacemaker as well as sensors that meet tough military standards for installation on aircraft engines and controls. Pacemakers of the highest quality contain the world's smallest reed switch. Additional applications include the International Space Station, golf and turf equipment, hearing aids, valve controls, military radios, aircraft, hospital defibrillators and many more unique applications where quality and reliability are required. The company is headquartered in Chickasha, Okla.