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Letter from the President

Mallory Sonalert Products, Inc. provides the highest quality and most diverse line of audible and visual signals in the world today.  From our standard panel mounted product to our custom designed, customer specific models, we are able to devise and produce virtually unlimited sounds to meet any requirement.

After 50 years, our product line is stronger than ever and continues to expand. Our rapidly growing patented line of medical alarms is the only one in the world with UL approval to the IEC60601-1-8 medical specification. New, patented miniature panel mount products now include multi-tone sound and light options and the ability to independently control sound and light alarms. The introduction of our patented Stacklight 28 VAC/DC series of products was so successful, we expanded this product line and now offer a series of 120 VAC products. The alarm versions of the Stacklights are offered at a frequency of 2 kHz, the lowest available in the industry. 


Sonalerts can be found throughout the world in every type of industry imaginable, including industrial, consumer, transportation, medical, military, and hazardous markets. We are proud that our products are used in rigorous and critical applications such as construction and agricultural equipment, infant monitors, and missile launching systems, as well as in commonly found products such as recreational equipment and security systems. Even NASA has utilized specially made Sonalerts for the space program.


Key to our continued growth is customer satisfaction, and much of our research and development is undertaken to help customers find solutions to difficult problems. Numerous patents have been awarded for many design innovations, and with an aggressive new product program, our state-of-the-art Engineering Lab will continue to introduce innovative products. In support of this, Mallory has recently updated our manufacturing equipment and anechoic sound chambers to aid in development of advanced circuit designs and increase measurement precision of our products, and expanded our production facility by 50% to make room for additional production lines for new products and our rapidly growing IEC60601-1-8 medical alarms.

Sonalert is recognized around the world as the standard in audible alarms and other board-level audible devices, and with our broad array of products, which, in addition to those named above, include surface mount buzzers, sirens, warblers, back-up alarms, transducers, speakers, microphones, and indicators, Mallory Sonalert has one of the most extensive product offerings available. I invite you to visit our website and contact us with any sales or technical questions you may have.


Wayne Hodges
President & CEO
Mallory Sonalert Products, Inc.


Mallory Sonalert Products • 4411 South High School Rd. • Indianapolis, IN 46241 • 317.612.1000