About the Company

Lynda Cole, manager of DMS-Service, first started in the Holter industry in 1973 in her father’s business, Scole Engineering Co. Inc.

During this time Scole manufactured Holter recorders for companies such as Marquette Electronics, Burdick, Hittman, Advanced Med and Pacesetters. Scole Engineering also designed the first Holter to use a disposable 9v battery, the first multi-day recorder and the first 3-channel Holter recorder.

Through the years Lynda has looked to provide the best equipment to the doctors and facilities she has worked with. A pet peeve has been the inability to use a Holter recorder with any Holter system… why can’t it be like the old days when Scole Engineering Co manufactured recorders that worked with numerous Holter systems? With her team of programmers she has come up with a solution; one that does not alter the Holter analysis software in anyway. The result is the myPatch® utility software which was introduced with the original myPatch® Holter recorder and now available for the brand new myPatch®sl Holter recorder. DMS Service supplies Holter devices and systems that are ECG Holter Monitors and patches.

“Lynda has proven to be professional and a reliable resource for the last 35 years we have worked with her. She is always available to help us and always willing to train our new technicians and nurses on the uses of Holter equipment…”
—Stephen R Corday, M.D., F.A.C.C. Cedars-Sinai Medical Towers, Los Angeles, CA


In 2017 dms-service released a true game-changer; the myPatch®sl recorder. myPatch®sl features an IP rating of 68, waterproof up to 2 meters of water for 1 hour, 2 channels of continuous ECG recording for 14 days. Another new addition is offering multiple electrode sizes for patient comfort and convenience. Now myPatch®sl is available in adult, pediatric and neonate electrodes.

What does the IP rating mean? This means the patient does not need to worry about taking a shower while wearing the device!

The myPatch®sl is compatible with numerous Holter analysis software packages on the market or available for use in our scanning service. We’re also extremely proud to say that myPatch®sl is manufactured right here in the USA.

Press Releases

Los Angeles, CA – July 1, 2014 – dms-service llc, a business specializing in Holter Monitoring, received national certification as a Woman-Owned Small Business by the Women’s Business Enterprise Council-West, a regional certifying partner of the Women’s Business Enterprise National Council (WBENC).

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See WOSB Certificate
See WBENC Certificate