Cold chain temperature monitoring hardware, from sensor to cloud.
We design and build the whole temperature monitoring chain for fridges, freezers and cold rooms: sensor board, firmware, radio link and cloud pipeline, with one lead throughout. The nearest build we can point to is a four-channel LoRaWAN temperature node, now on trial in an operational plant room.
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The problem
Food businesses work to HACCP, and the FSA expects compliance to be provable at inspection. A handwritten temperature log is only as good as the person filling it in, and a gap in it is hard to explain afterwards. A device taking the readings removes that dependence, but a cold room is a hard place for one. Metal shelving and thick insulated walls can get in the way of a radio signal, and a probe has to cope with condensation and frost. Where the readings go, who is alerted and what record you can show an inspector are design questions as much as the sensor is, and we would settle them together. Freezers, fridges and walk-in rooms behave differently, so one probe design rarely suits all three.
What we'd build
Temperature probes, firmware, radio and cloud for cold storage
A battery-powered temperature sensor with its firmware, wireless link and data pipeline, shaped around the fridges, freezers and rooms you need to cover. This is the build we would take on for you, not a finished product on a shelf. The first questions would be which rooms and units you need to cover and what has to happen when a reading goes out of range.
| Layer | What we'd do | Detail |
|---|---|---|
| Probes and board | A custom board with probes sized for a fridge shelf, a freezer or a walk-in room, on a low-power radio module and battery. | Decisions to settle first: probe type, where it mounts, how a door opening shows up in the reading, and how the board is powered and replaced |
| Firmware | Sleep between readings, report on a schedule you choose and raise an alert when a reading stays out of range for as long as you decide. | Reading interval, how long a reading may stay out of range before an alert, and what the device does while the radio link is down |
| Radio | LoRaWAN, NB-IoT or BLE, chosen after looking at how the building treats the signal, with gateway placement planned alongside. | On our node: an indoor Basic Station gateway forwards the LoRaWAN uplinks |
| Cloud | A network server and telemetry database holding each reading with its time, with alerts and exports shaped to the checks you already run. | Which records you must be able to show at an inspection, who receives alerts, and how long readings are kept |
| Mechanical | Probe mounting and an enclosure that suits cold, damp and food-handling areas, scoped with you at the start. | Cleaning, condensation and frost would all be considered in the enclosure choice |
How working with us goes
- 01 Scope We agree what has to be built, where it lives and where the data goes.
- 02 Prototype Working hardware and firmware on your bench, tested against real conditions.
- 03 Pilot A small batch on real sites, with fixes folded back into the design.
- 04 Production Design for manufacture, a production run, and support once it is in the field.
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Need a temperature monitoring chain designed and built?
Custom hardware, firmware and software, from first sketch to production.
Talk to us about your project alessio.grespi@gmail.comWant it deployed, ready to run?
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