Cold room monitoring with temperature alerts

A suitable temperature probe measures inside the cold room, refrigerated warehouse or freezer. A LoRaWAN sensor sends readings through a gateway to SECURUS. Each measurement point is assigned to a site and a room. Temperature histories and alerts are available centrally across multiple branches.

For shielded cold rooms, a sensor with an external probe may be useful: the probe measures inside while the radio unit stays outside. Range, accuracy, moisture protection and reception must suit the application. Reception is checked at the actual installation point before handover.

A brief rise in temperature does not always mean refrigeration failure. Defrost cycles, cleaning and deliveries affect air temperature. You and your refrigeration contractor define appropriate limits and timing rules based on the goods, equipment and operational requirements. One universal limit would be inappropriate.

Probe position affects the result. Readings near the evaporator, at the door and between goods will differ. Measured air temperature is also not automatically the core temperature of a food product. Define what the measurement point needs to tell you before installation.

An additional door contact shows whether the cold room door is open or closed. It complements temperature readings: an open door often explains a temperature increase better than the reading alone. The team can check for obstructions or a seal that needs inspection.

Door contacts and temperature sensors do not replace refrigeration maintenance. They make selected conditions visible. If temperature rises with the door closed, diagnosis remains the refrigeration contractor’s responsibility.

A temperature alert must reach someone responsible outside opening hours too. Set notification groups for branch managers, building technicians or service partners. The message identifies the site and measurement point. Agree responsibilities and cover arrangements before the first alert.

After an alert, the team checks the situation on site. Measures to protect or assess goods follow your operating procedures. A notification alone cannot guarantee a response or that stored products remain unaffected.

Historical readings and CSV exports support temperature records in retail, hospitality, canteens and care facilities. Your team can trace when a deviation began and how temperatures developed afterwards. This supports operational reviews and coordination with service teams.

SECURUS supports documentation within your HACCP plan. This does not constitute blanket HACCP certification. Required checks, calibration, retention periods and supplementary records depend on your business and applicable requirements.

For retailers and branch networks, measurement points are organised by branch and refrigerated area. In care facilities, kitchens and housekeeping may be involved; in municipal properties, canteens, childcare facilities or event venues. The measurements are similar, but responsibilities differ.

Start with areas where an unnoticed failure would be particularly serious. Verify measurement points, reception and alert recipients in a pilot installation before extending monitoring to other rooms and sites.