Matrix Systems

Floyd Bell manufactures and distributes technologically advanced and maintenance-free piezo electric audible alarms. Piezo alarms are a viable alternative to electromechanical alarm devices, which require more power to operate, are much larger, have shorter useful lives and often present significant maintenance problems. Since 1972, Floyd Bell has provided millions of audible alarms to meet the needs of a diverse customer base, from Fortune 500 original equipment manufacturers to occasional alarms users. From consultative design through just-in-time delivery, Floyd Bell has the capability of handling all of its clients audible alarm needs. The company is based in Columbus, Ohio.

Since its beginning in 1964, Ohio Semitronics has been a pioneer in the field of energy measurement. The founder, W.E. Bulman, pioneered the development of the hall-effect semiconductor materials that revolutionized current measurement devices. The company has developed several types of energy measurement devices and instrumentation and offers custom application of products. Its products are used on submarines and destroyers, satellite delivery systems, military and commercial aircraft, oil platforms in the North Sea and at refineries. Ohio Semitronics products help control electric trains in Europe and wind mills in California. All its products are manufactured in the United States.