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MRI Monitoring · 24/7

Detect MRI cooling failure before it becomes a problem.

Mag-Guard monitors your MRI around the clock and alerts you immediately by SMS and email — automatically, reliably, effortlessly.

Compatible with Siemens:
Aera, Skyra, Skyra Fit, Skyra Fit Biomatrix, Altea, Lumina, Vida, Vida Fit, Sola, Sola Fit, Amira, Avanto Fit and Avanto Fit Biomatrix.

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24/7
Monitoring
The Problem

The Impact and Consequences of a Cooling Failure

A cooling failure often starts unnoticed — and without early detection, can quickly escalate into a catastrophe.

Stage 1 — Early Detection
Cooling Failure

The cooling fails. As a consequence, the magnet may begin losing helium. No critical damage yet, but immediate action is required.

→ Refill helium if needed, minimal downtime
Stage 2 — Critical
Quench

Usually the consequence of a prolonged cooling failure. A quench occurs: the magnet abruptly collapses its magnetic field. A significant amount of helium is lost. In 3-Tesla systems, all helium is lost — regardless of the previous fill level.

→ Helium costs from €10,000, plus downtime of at least 1.5 days
Stage 3 — Thermocycle
Magnet Warms Up

The quench goes unnoticed. Without helium, the magnet warms up — within as little as 2 hours, the critical temperature can be exceeded. At this point, normal cool-down with liquid helium is no longer possible. A so-called thermocycle becomes necessary: a highly complex process in which the magnet is slowly cooled down again over several weeks. The system is out of service for weeks.

→ Costs from €300,000, downtime of several weeks
The decisive difference between Stage 1 and Stage 3?
Early detection — and the right response at the right moment.
→ Learn more: MRI Chiller Failure — Causes, Costs & Prevention
Real case — Munich, June 2026

Weekend. The rooftop AC unit fails. By chance, a cleaning employee notices the acoustic alarm on Saturday and contacts the radiologist — still, the quench could not be prevented.

Repair costs: €88,000 — plus days of downtime.

Without the quick response of the cleaning employee, the quench would have gone unnoticed and led to the magnet warming up — thermocycle.

Learn more

Technology & Costs in Detail

Technology
MRI Cooling System Explained

How does MRI cooling work? Cooling circuit, heat exchanger, compressor and cold head — with diagram.

View technology →
Costs & Risk
What Does a Cooling Failure Cost?

Silent loss, quench, thermocycle — three stages, three orders of magnitude. With a real case from Munich.

View costs →
The Solution

Mag-Guard — Your early warning system for the MRI.

Mag-Guard monitors your MRI around the clock and detects cooling problems immediately — before Stage 1 becomes Stage 3.

As soon as a problem is detected, you are immediately alerted by SMS and email — day or night, weekdays or weekends.

No interference with the MRI electronics. Only network and power (230V) required.

Mag-Guard · Live
Connected
Compressor Status OK
QUENCH Alarm OK
Last Check 2 sec. ago
Active System Primary
Power Supply ⚠ Battery
Alerting SMS + Email active
Last Alert SMS Delivered (12 min. ago) · To: +4915774161348
Recent Events
3 min. ago Compressor active again
18 min. ago Power outage detected – running on battery
34 min. ago Compressor failure detected
How it works

Simple. Secure. Reliable.

🔌
Connection to the MRI alarm contact

Mag-Guard connects directly to the dedicated remote alarm contact of the Siemens MRI — a potential-free relay contact provided exclusively by Siemens for external alarm use. No interference with the MRI electronics.

📡
Continuous Monitoring

The Mag-Guard device continuously reads the MRI alarm contact and regularly transmits the status to our servers — fully automatically, around the clock.

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Instant Alerting

As soon as the MRI reports an alarm — or the device stops reporting — you are immediately notified by SMS and email. Even in the event of a power outage.

🔌
Just power and network — nothing more

All that is required on the customer's side is a standard power outlet (230V) and a network connection. Mag-Guard is installed by us — no technical knowledge required, no effort on your part.

Features
🕐
24/7 Monitoring

Mag-Guard works around the clock — including weekends and holidays. No manual effort, no blind spots.

📱
Instant Alerting

When an alarm triggers, you immediately receive an SMS and email — so you can act before damage occurs.

⚡
QUENCH Detection

Mag-Guard also detects the worst case — a quench — and alerts you immediately with the highest priority.

🔌
Easy Installation

No interference with the MRI electronics. Only network and power (230V) required. Ready to operate within minutes.

🛡️
Reliable Technology

Industrial components, proven software, redundant alarm channels — Mag-Guard is designed for continuous operation.

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Zero Maintenance

Once installed, Mag-Guard runs independently. No staff required, no regular checks needed.

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Notified Even During Power Outage

In the event of a power outage, you will automatically receive a notification — so you are always informed, no matter what happens.

Pricing

Simple. Transparent. Fair.

Premium — Recommended for International
4,500€
including 2 years notification service
  • Professional on-site installation — ready in under one hour
  • SMS & email alert to up to 3 contacts — instantly when the compressor stops
  • Built-in UPS — continuous monitoring even during power outages
  • 3 hours battery runtime
  • SMS alert on power failure — distinction: premises or MRI affected?
  • Redundant hardware — a second identical system takes over automatically if the primary fails
  • Dashboard shows which system is active at all times
  • Live dashboard — check your system status anytime on your smartphone
From year 3: 1,800 €/year
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Mag-Guard device

The Mag-Guard device

For multiple devices, please contact us for volume pricing.

🔧
Self-Installation Option — Save 300€

Prefer to install the device yourself? No problem. Mag-Guard arrives fully pre-configured and ready to connect. A detailed step-by-step installation guide is included. Available for all packages — 300€ off the purchase price.

🛡️
3-Year Product Guarantee

In the event of a defect, you will receive a replacement device free of charge — without bureaucratic effort and without hidden costs.

FAQ

Frequently Asked Questions

What is Mag-Guard?

Mag-Guard is a 24/7 monitoring system for Siemens MRI machines. It continuously monitors the MRI alarm contact and sends an immediate alert by SMS and email the moment a cooling failure is detected — automatically, around the clock, including nights and weekends. The goal is to detect problems at Stage 1, before they escalate into a costly quench or thermocycle.

Where is Mag-Guard connected?

Mag-Guard connects directly to the potential-free alarm contact of the Siemens MRI — a dedicated interface provided by Siemens specifically for external alarm use. There is no interference with the MRI electronics whatsoever. The only additional requirements are a standard power outlet (230V) and a network connection.

Live Demo

Experience Mag-Guard before you decide.

🖥️

On request, we set up a personal demo access to a real Mag-Guard dashboard for you. With a single click, you trigger a simulated fault and receive a genuine SMS and email alert — so you experience the system firsthand before deciding.

Request demo access
Contact

Get in touch.

Would you like to protect your MRI or have questions about Mag-Guard? We will get back to you within 24 hours.

✉info@mag-guard.de
📞+49 1577 41 61 348
🌐mag-guard.de
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