Security systems, access control, video surveillance, digital recording, burglar alarms, fire alarms. Electro Watchman Inc. Mandan, ND, Bismarck, ND. Sales, service & leasing. The region's premier security systems provider since 1921. Serving the upper Midwest.Security System, Burglar alarm, Fire alarm, Video Surveillance, Electro Watchamn.We at Electro Watchman, Inc. in Mandan and Bismarck ND, are the region's premier security systems provider since 1921. Our family is owned and operated business has yielded thousands of satisfied customers. We have a simple philosophy, treat our customers as we would want to be treated.Our services include, but aren't limited to: Intrusion alarms Fire systems Windows sensors Door sensors Motion detectors Glass break sensorsWhatever your security needs are: residential, commercial or industrial. Our professional sales staff is always ready to assist you with any security needs you may have.Call us today!