Temperature control for franchises and multi-store chains: cold chain traceability for every unit
How to control the temperature of cold rooms, freezers and fridges across dozens or hundreds of stores, with alerts someone resolves and records that hold up in audits.
To control the temperature of refrigeration units across a franchise network or a chain of company-owned stores, what works is a sensor in each unit that measures on its own, a central platform where the brand sees every store, and alerts that go to a named person who has to close them. That replaces paper logs with a continuous record, and every deviation is documented with who resolved it and when.
Why paper logs fall short
In most chains, cold chain control is a paper log: someone at the store checks the thermometer two or three times a day and writes the value down. That method has three problems:
- It leaves hours without data. If a freezer fails overnight, the morning log shows it is out of range, but not since when. Without that, there is no way to know whether the goods are still safe.
- It depends on someone doing it. In a short-staffed store, or with a franchisee who does not prioritize it, the log is filled in late or from memory.
- It is expensive at scale. Sending a person to every unit, every day, across hundreds of stores takes a lot of labor. In projects with its customers, Alephius estimated that automating the record cuts the labor spent logging temperatures by about 90%.
With a sensor that measures every 15 minutes, each unit produces 96 readings a day, including nights and weekends, with no one at the store involved.
What the brand needs to see from each store
For a franchise brand, the value is not only the temperature of one unit, but being able to compare and audit the whole network:
| What is measured | What it is for |
|---|---|
| Temperature of every cold room, freezer and fridge | Knowing the goods were kept properly and catching failing units before product is lost |
| Door openings on freezers and fridges | Seeing in reports how often each unit is opened and comparing stores |
| Alerts and response time per store | Seeing which franchisees resolve issues quickly and which need follow-up |
| Full history per unit | Having the evidence ready for an audit, an inspection or a claim |
Alerts someone has to close
An alert that lands in a shared inbox and nobody handles is the same as no alert. Across a store network, what matters is that every alert has an owner and a resolution:
- The sensor detects the deviation, for example a freezer rising above −18 °C, and an incident is created.
- The person in charge of that store is notified on WhatsApp or by email, with concrete instructions on what to check. That is what Alephius Assist does.
- If the deviation continues, it escalates: after the configured time, the alert reaches the supervisor or the right level, with no one having to follow up manually.
- The resolution is confirmed: who solved it, what they did and how long it took are recorded.
With that, the brand can audit compliance for every store and every person in charge: how many incidents they had, how many were closed on time and how many escalated.
Rolling out to many stores without disrupting operations
In a franchise network, installation is usually the hardest part: each store has units of different brands and ages, and freezers are often owned by a supplier and cannot be touched. That is why a self-contained sensor makes sense: it installs in seconds without taking anything apart, works with any brand and store staff can place it, with no technicians. For reference, a supermarket chain connected 600 sensors in 30 stores in 5 business days without disrupting operations. How the sensors connect, and why no data is lost when the internet goes down, is covered in the guide to large-scale temperature monitoring.
Three questions specific to a franchise network
- Does it work with freezers owned by a supplier that cannot be modified?
- Can each store’s staff install it, without sending technicians?
- Can I see the response time and compliance of each store and each person in charge?
The full list of questions for comparing vendors is in the guide how to choose a temperature monitoring system.
How Alephius solves it
Alephius combines self-contained Edge sensors in each unit, one gateway per store over WiFi or 4G, the Alephius Cloud platform with the history of the whole network, and Alephius Assist, which takes every alert through WhatsApp until it is closed. It has customers running 1,000 sensors, and its records have already been presented in laboratory audits.
See how it works in retail and cold chain.
Frequently asked questions
How can I control the temperature of my franchisees' refrigeration units without relying on paper logs?
With a sensor in each unit that measures the temperature every 15 minutes and sends it automatically to a central platform. Franchisees do not have to write anything down, and the brand sees every store in one place, with alerts when a unit goes out of range.
Do the units have to be modified or their controller replaced?
No. The Alephius Edge sensor is self-contained, with a battery that lasts up to 5 years, and installs inside the unit in seconds, without cutting the power or calling a technician. It works with any brand, including freezers owned by a supplier that cannot be modified.
What happens if a store loses its internet connection?
No readings are lost. Each sensor stores more than ten days of readings, and the store's gateway keeps what it receives and sends it when the connection is back. The gateway connects over WiFi or 4G, so it does not depend on the store's network.
Do the records hold up in an audit or an inspection?
Yes. The temperature history of each unit, every alert, who handled it and when it was closed are all recorded and can be exported as a report. Alephius records have already been presented in laboratory audits.