Seamless Temperature Monitoring.HACCP-Compliant & Managed.

Protect your goods from temperature fluctuations - without manual logs. We deliver and operate the infrastructure for automated, EN12830-compliant cold chain documentation.

  • EN12830 Compliant Hardware
  • GDPR-Compliant Cloud
  • 24/7 Managed Operations
Request Monitoring Solution
Cold Chain Monitor12:03:55 PM
3
Normal
1
Warning
0
Critical
Cold Room A
4.2°C/ 5°C
92%
95%
Cold Room B
3.8°C/ 5°C
87%
88%
Deep Freeze
-18.5°C/ -18°C
78%
92%
Delivery Area
7.2°C/ 5°C
95%
85%
Delivery Area: Temperature above target (+2.2°C)

The End of Paper Lists.

Manual temperature checks cost time, are error-prone, and offer no security on weekends. merkaio replaces sporadic spot checks with permanent infrastructure.

The Risk

Manual readings & paper chaos. A cooling failure on the weekend isn't noticed until Monday - when the goods are spoiled.

The Solution

Real-time alerting via SMS, email, or call when thresholds are exceeded.

The Compliance Gap

USB loggers only provide data retrospectively. Creating seamless records for auditors is tedious.

The Solution

Automated PDF reports and EN12830-certified measurement accuracy for your HACCP documentation.

The Data Island

Data sits locally on devices or proprietary clouds. No integration with your IT.

The Solution

Open interfaces (API, MQTT). The data belongs to you and flows directly into your systems.

Legal Certainty Through EN12830 Standard.

merkaio is not a food producer, but we deliver the digital backbone for your quality management. Our infrastructure meets the strict technical requirements of DIN EN 12830 for the transport, storage, and distribution of chilled foods.

Certified Hardware

We rely on Milesight sensors that are officially tested according to EN12830.

Seamless History

"Data Retransmission" ensures that no measurements are lost even during internet outages. The sensor stores locally and transmits later.

HACCP Support

Our dashboards deliver exactly the data series you need for your hazard analysis and Critical Control Points (HACCP).

Infrastructure for Cold Chain.

merkaio core

Deployment of professional LoRaWAN sensors with high building penetration (Deep Indoor Penetration). Works even from closed stainless steel refrigerators and cold rooms.

merkaio ops

We monitor not only the temperature but the "health" of the sensors (battery level, signal strength). We guarantee platform operation.

merkaio cloud

Central, encrypted data storage in German data centers. Long-term archiving for audits.

Hardware That Withstands the Cold.

Milesight TS301 / TS302

Milesight TS301 / TS302

For refrigerators, pharmacies & gastronomy.

Professional sensor with LCD display for on-site control.

  • Measurement range: -30°C to +70°C (Standard) / up to +150°C (High Temp).
  • Special feature: External probe (magnetic) + door contact sensor in one.
Milesight EM320-TH

Milesight EM320-TH

For warehouses & cold storage.

Robust sensor with FDA-approved materials for direct food contact.

  • Protection class: IP67 (waterproof).
  • Battery life: Up to 10 years.
Milesight TS101

Milesight TS101

For food processing.

Insertion probe for core temperature measurement.

  • Protection class: IK10 (extremely impact-resistant).
  • Application: Meat, dough, tobacco, critical goods.

See Milesight Temperature Monitoring in Action

Data That Passes Audits.

Visualized with Grafana or ThingsBoard. We configure dashboards that show you at a glance:

  • Current temperature of all cooling points (traffic light system).
  • Historical trends including min/max values.
  • Open alarms and acknowledgments.
Cold Chain Monitor
Last 24h
Cold Room A
4.2°C
OK(Target: 5°C)
Cold Room B
3.8°C
OK(Target: 5°C)
Deep Freeze
-18.5°C
OK(Target: -18°C)
Delivery Area
7.2°C
WARN(Target: 5°C)
Temperature History (24h)
Min: 4.0°CMax: 7.2°C
8°C4°C
Alerts1 active
Delivery Area: +2.2°C above target5 min ago

Frequently Asked Questions

Leading companies worldwide trust merkaio

  • “With Timo and Robin, you're not only on the safe side technically - you also get the best human support! Whether it's quick help in everyday life or complex IT solutions: the guys from merkaio think along with you, act quickly and speak a language you understand. The collaboration is uncomplicated, reliable and always on an equal footing. That makes IT fun - and above all: it works! Big thank you to the team!”

    Sonja Aßer

    Sonja Aßer

    Data Manager, ARGE, Germany

  • “I got to know Timo and Robin as dedicated and professional partners who make a lot of things possible for their clients that initially seem impossible. I felt very well advised. The services offered have thoroughly convinced me.”

    Andrea Pawlowski

    Andrea Pawlowski

    Communications Manager, Golem.de, Germany

  • “I recently worked with Timo and the merkaio team, and honestly, it turned out to be one of the best tech decisions I have made for my business. Right from the start, Timo took the time to walk me through every step in a simple and calm way. No matter how many questions I had, he never rushed me. The results speak for themselves. With merkaio, we reduced our monthly expenses from $1,300 down to $250. This was a huge win for us.”

    Aleksandr Shuliko

    Aleksandr Shuliko

    CTO, EVA Real Estate, UAE

  • “merkaio manages our Proxmox cluster reliably and professionally. The team handles continuous monitoring and regular updates for us and responds very quickly to any issues or inquiries. They also configure new nodes, systems, and applications that we need to add to our cluster. With merkaio's proactive support, our cluster and the business-critical applications running on it remain stable, and high availability is consistently ensured. We value the professional collaboration and the noticeable relief it brings to our daily operations.”

    Pascal Hakkers

    Pascal Hakkers

    CEO Aphy B.V., Netherlands

  • “Counting on the merkaio team was crucial, their expertise and solutions gave us the pace to deploy in production our services, even suggesting and performing improvements over our configuration and setup. We expect to keep counting on them for continuous maintenance of our services and implementation of new solutions.”

    Gabriel Sanz Señor

    Gabriel Sanz Señor

    CEO Odiseo Solutions, Spain

  • “From the initial consultation to the final implementation, everything was absolutely professional, efficient, and to my complete satisfaction. I particularly appreciate the clear communication, transparent pricing, and the comprehensive expertise that both bring to the table. They take care of the maintenance, which frees up my time enormously and allows me to focus on other important areas of my business - with the good feeling that our IT is in the best hands. I can recommend merkaio without reservation!”

    Sebastian Maier

    Sebastian Maier

    CEO Yonju GmbH

  • “We have had very good experiences with Mr. Wevelsiep and merkaio. The consultation was professional, clearly understandable, and at fair prices. The team not only implemented our requirements but also thought along and proactively. Instead of just processing individual tasks, they provided us with well-founded explanations that strengthened our own understanding. merkaio took a lot of pressure off us with their structured approach - that was exactly what we needed and is the reason why we keep coming back.”

    Matthias Zimmermann

    Matthias Zimmermann

    CEO Annota GmbH

  • “Robin and Timo provided excellent support! We received truly competent advice and will gladly return to their services in the future.”

    Simon Deutsch

    Simon Deutsch

    CEO WiseWhile UG

Let's start your IoT project. Digital and on-site.

We don't just deliver software - we deliver the complete solution. From selecting and installing sensors in your facility to secure cloud operations. Talk to engineers who can do both.

Timo Wevelsiep

Your contact

Timo Wevelsiep

Lead IoT Solutions Architect