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Cold chain risks
A loss of refrigeration can come from something quite ordinary: a breakdown at the weekend, a door not closed properly, a network outage. Here are six situations to plan for, and what an alert can change.
Six situations to plan for
A breakdown outside opening hours
The refrigeration plant stops on a Saturday night. Without an alert, you find out when you reopen.
A power cut
The refrigeration stops, and so does everything plugged in nearby. An internet router or a gateway with no battery can no longer send anything. The ARES device runs for about 24 hours on its backup battery, and battery-powered sensors keep measuring.
A door left ajar
Nothing has broken down, but the temperature is slowly rising. A well-chosen threshold and delay let you see it in time.
Defrost
A normal cycle raises the air temperature. Without a delay, it sets off false alerts, and the alarm ends up being switched off.
A compromised or failed controller
The displayed temperature goes through the controller. A separate probe gives you another reading. See what is established about the 2026 attacks.
A network failure
An email alert sent from the site's network stops when that network does. Transmission over the mobile network remains possible if coverage allows.
See also
Choosing an alarm
Threshold, delay, defrost and recipients.
Find out moreNo Wi-Fi or internet
Mobile network, NB-IoT or LoRaWAN.
Find out moreWhy an independent reading
What it offers and where it stops.
Find out more
Tell us about your site
Let us know what you want to monitor, where it is, and how many fridges or cold rooms are involved. We will reply with a quote.