Door & Window Contacts
Protect exterior doors, overhead doors, accessible windows, and other openings with reliable perimeter detection tied to clearly labeled zones.
Commercial Security Alarms · Minnesota & Western Wisconsin
Commercial Security Alarm Systems & Intrusion Detection
Magnuson Low Voltage Wiring designs, installs, and monitors commercial burglar alarm systems built around your actual property — not a boxed package. From perimeter contacts and interior motion detection to employee duress devices and cellular communication, we protect businesses across the North Metro, I‑35 corridor, East Central Minnesota, and our Western Wisconsin service area.
- Door, window & motion sensors
- Glass break & shock detection
- Smart keypads & app control
- 24/7 central station monitoring
As a licensed Minnesota low voltage contractor, we handle the devices, cabling, panel, programming, testing, and monitoring setup — one accountable partner from the first walkthrough through final training.
Already have an alarm system? We can inspect the panel, wiring, and sensors to determine what can be reused before recommending a complete replacement.
What a Well-Designed Alarm System Actually Solves
- Protect the perimeter after hours
- Door contacts, glass-break sensors, and motion detection work together so an opening or movement is identified before a loss spreads through the building.
- Give employees a fast way to call for help
- Panic, hold-up, and duress devices can be placed where staff need discreet, immediate access to the response plan you establish.
- Know which area triggered the alarm
- Clear zone labels and event history show whether an alert came from the loading dock, front office, stockroom, or another protected area.
- Manage different schedules and users
- Create individual codes, separate partitions, and opening or closing schedules for employees, cleaners, managers, and multiple tenants.
Commercial Properties We Protect
Every property has a different closing routine, risk profile, and floor plan. We build the intrusion system around the way your people use the space.
- Offices & professional suites
- Retail stores & restaurants
- Warehouses & distribution
- Medical & dental clinics
- Churches & community buildings
- Manufacturing & repair shops
- Multi-tenant commercial properties
- Detached shops & outbuildings
The Right Sensor in the Right Place
A dependable commercial burglar alarm is more than a keypad. We survey the building, identify the likely paths into and through it, and build layers of detection around the property, people, and assets that matter most.
Motion Detection
Cover interior paths and high-value areas after closing with motion sensors selected and positioned to reduce avoidable triggers.
Glass-Break & Shock Sensors
Detect breaking glass or force against vulnerable storefront and ground-level windows before an intruder reaches the interior.
Panic, Hold-Up & Duress
Give staff a discreet way to signal an emergency from reception desks, cash-handling areas, service counters, or private offices.
Keypads, Users & Partitions
Use individual codes and separately armed areas so managers, employees, cleaners, and tenants only control the spaces they should.
Cellular & App Control
Arm or disarm remotely, receive alerts, review event history, and keep the panel communicating without depending only on a traditional phone line.
Detect → Verify → Notify
Every signal follows a documented path. Your alarm identifies what happened and where, then the central station follows the response instructions set for your site.
Detect
A door, motion, glass-break, or duress sensor identifies activity and reports its exact zone to the alarm panel.
Verify
The panel and monitoring station identify the account, event type, protected area, and response instructions associated with that signal.
Notify
The monitoring station follows your call list and response plan, notifying authorized contacts or responders when the event requires it.
Retrofits & Takeovers
Keep What Works. Upgrade What Does Not.
Changing alarm providers or modernizing an older panel does not always mean replacing every wire and sensor. We inspect the existing system, test the field devices, and show you what can stay, what should be upgraded, and what has reached the end of its useful life.
- Evaluate existing hardwired contacts, motion sensors, and cabling
- Replace obsolete panels or communicators without unnecessary demolition
- Update zone labels, user codes, schedules, and monitoring instructions
- Add cellular communication, mobile alerts, and app-based control
24/7 Alarm Monitoring
Your Alarm Stays Connected After Everyone Leaves
Central-station monitoring gives every alarm signal a response path around the clock. Cellular communication can keep the panel connected without relying only on internet service, while the mobile app lets authorized users arm, disarm, manage users, and check event history from anywhere.
Let's Build the Right Alarm Plan for Your Property
We will walk the site, review your existing equipment, identify the vulnerable openings and interior areas, and quote one clear scope for devices, wiring, programming, and monitoring.
Frequently Asked Questions
Common questions about commercial security alarm systems, sensors, and 24/7 monitoring in Minnesota.
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