Chiller alarm raised at Halstead

A chiller that fails overnight shouldn’t cost you a day’s production

Paper temperature logs only tell you what was true when someone last looked.

mpro5 Sensor Hub connects independent sensors on every chiller, freezer and cold store to the people on shift, so an out-of-range reading becomes an owned task straight away. The stock gets protected, the cause gets found and the record is ready for your auditor or your customer.

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Starts instantly About three minutes No sales call

DW Baking cut the time to fix non-compliance by up to 93% across 24/7 production.

9:41
1
To-dos
TodayScheduledDone
Due Today 2/6
Urgent  1Due soon  1
Chiller 2 too warm
Reading 9.1°C, above its 5°C limit. Find the cause and protect the stock.
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Morning1
Metal detector check
10:00 – 10:30Due soon
Follow this alert yourself
Interactive demo · tap to start
Alarm to owner, instantly
Evidence captured
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Sound familiar?

How most sites find out a chiller has failed

Every technical manager we speak to has lived through some of this. It happens on well-run sites, because the alarm and the temperature log sit somewhere the people on shift aren’t looking.

Before mpro5
With mpro5
Chiller temperatures written on a clipboard a couple of times a shift, so a failure between checks goes unseen for hours.
Sensors read every chiller, freezer and cold store around the clock, and a sensor that goes quiet gets flagged too.
An alarm sounding in an empty factory overnight, and the first anyone knows is the morning shift.
The alert lands on the phones of everyone on shift the moment a reading goes out of range, and escalates if nobody picks it up.
A whole chiller of finished goods put on hold because nobody can say how long it was warm.
The chart shows exactly when it went out of range and when it recovered, so QA can make the call on the product with evidence.
Refrigeration controls and alarms on the same system, so if one is hacked or fails, you lose both.
Independent sensors give you a second view, separate from the system that controls the chiller.
The auditor asks for last month’s cold store records and someone spends the afternoon in the binders.
Every reading, alert and response is on record, searchable by site, unit and date for any auditor or customer.

Watch the right-hand column happen. The demo follows one warm chiller from the first reading to the proof in about three minutes.

Not ready for a call?

See a chiller alert in action

Follow a temperature alert in a food factory from sensor to sign-off, and see how the production operative, the site’s technical manager and head office each respond, with a few moments where you take over.

The team on shiftGets the alarm and the task on their phone
The technical managerSees who owns it and what has been done
Head officeWatches it close out across every site
The sensor workflow

What happens in the 11 minutes after a sensor trips

Every alert follows the same steps, so nobody on shift has to work out what to do on the spot, and nothing depends on someone happening to walk past the chiller.

09:28

Out of range, alert raised

The moment a reading crosses its limit, Sensor Hub raises an alert, with no waiting for the next manual check.

09:28

A task for everyone on shift

It lands on every phone on shift at once, and the technical manager and head office see it live.

09:33

Find the cause

The task walks them through it one step at a time, starting with what they can see at the chiller.

09:35

Protect the stock

It says what to move first and what to label, and they photograph the moved stock as proof.

09:39

Call out and report

Fixed and stock saved ends the alert and can raise an engineer job. If it isn’t fixed, the alert escalates.

And if a sensor goes quiet, it’s flagged as offline, so a dead sensor never hides a failing chiller. Every reading, response and photo stays on one record, ready for any auditor or customer.

mpro5 Sensor Hub

See every reading, and exactly when it breached

Sensor Hub is where your temperature data lives. Every chiller, freezer and cold store across every site, with the full history of readings, the moment a unit went out of range, how long it stayed there and the task that brought it back.

mpro5 · Sensor Hub
Estate › Halstead › Chiller 2

Chiller 2

OKSensor Hub
Now3.4°CWithin limits since 09:44
Limits0 to 5°CHigh-care, Halstead
Peak this morning6.2°CAt 09:38
Time out of range16 minOne alert, ended by task
ReadingsEvery reading, 08:30 to 10:30 today
24 h7 d30 d90 d1 yCustom
0°5°8°08:3009:0009:3010:0010:30 09:28Breach: alert and task raised 10:05Back within limits, alert closed
Within limitsAlertTask raised
Ended by taskTemperature high · above 5°C · raised 09:28 · ended in 11 minutes by Amy LewisOpen task

Every reading, kept

Zoom from the last day to the last year for any unit, so a drifting chiller shows up long before it fails.

The breach, to the minute

When it crossed the limit, how high it went, how long it stayed out and when it came back.

The response, linked

Every alert opens the task behind it: who acted, the cause, the photos and the engineer job.

Every site on one screen

Head office sees every unit across the estate, worst first, with offline sensors flagged.

Two-minute self-check

How many of these are true on your sites today?

Be honest, your auditor isn’t reading this.

0of 6

Tick any that ring true

See where my sites are exposed
The hidden risk

If your refrigeration controls are hacked, what tells you something is wrong?

This autumn, hackers pushed up fridge and freezer temperatures in hundreds of supermarkets in France, then across seven more European countries, Ireland included. Some units reached 50°C, and one chain’s chief executive put the cost at tens of millions of euros in a single day.

Sources: Al Jazeera, 13 Oct 2026 and AFP, 3 Nov 2026.

France’s cybersecurity agency put it down to basic shortcomings: refrigeration systems left open to the internet and protected by weak passwords. Factory cold stores run on the same kind of connected controls, and when the system controlling a chiller is also the one telling you it’s fine, a breach leaves you blind.

Independent sensors give you a second view you can trust, and mpro5 puts it in front of the people on shift with a task that escalates until somebody acts.

A second pair of eyes on every chiller, all night.

Food production operative completing a check on a tablet beside a rack of proving baskets
Play the chiller alertClick through it as the production operative
The mpro5 Compliance framework

A temperature reading on its own doesn’t tell you whether anyone acted.

That’s why mpro5 goes beyond recording the reading. The mpro5 Compliance framework is built around what happens next: Check, Fix, Prove, Prevent, Empower.

01

Check

Sensor Hub watches every chiller, freezer and cold store, day and night.

02

Fix

The right person on shift gets an owned task that escalates if nobody picks it up.

03

Prove

Who dealt with it, what they did and when, ready for BRCGS, SQF or your customer’s auditor.

04

Prevent

A sensor that goes quiet is flagged offline within 15 minutes, so a dead sensor never hides a failing chiller.

05

Empower

Your team get clear next steps at the chiller, one at a time.

mpro5 alerts view
See it in action
mpro5 is the most agile platform in our business. It got us further in just 3 weeks than other systems managed to get in years.
Tesco
What food businesses achieve with mpro5

Proof from the floor

93%faster fixes at DW Baking
£1m+saved every year at Tesco
2 weeksto go live across 80 Costa stores
93%faster resolution

DW Baking: QA on the production floor

DW Baking moved QA swab testing, GMP audits and hygiene checks off paper and onto tablets across 24/7 production.

Non-compliance now triggers instant alerts and auto-assigned rectification tasks, cutting resolution times by up to 93%.

Every check is timestamped and audit-ready on demand, with no chasing, no missing records and no downgrade risk.

£1m+saved every year

Tesco: 160 paper logbooks gone

When Tesco started working with mpro5, its stores were juggling more than 160 different paper logbooks.

Today mpro5 runs store compliance and tasks across more than 3,000 stores and 160,000 active users, saving over £1m every year and cutting slips and trips claims by 60%.

The retailer your products end up with already runs on it.

Before you book

Temperature monitoring questions, answered

What is refrigeration temperature monitoring for food manufacturing?

It’s the use of wireless sensors in chillers, freezers and cold stores to record temperatures automatically, around the clock, and alert the right people the moment a unit goes out of range. With mpro5 Sensor Hub, each alert also becomes a task for the team on shift, so the response and the corrective action are recorded alongside the readings.

What temperature should a food factory chiller be?

Most chilled product is held at 5°C (41°F) or below, and your HACCP or food safety plan sets the exact critical limit for each unit. Sensor Hub checks every reading against that limit and raises an alert as soon as it’s crossed.

How do you prove temperature control to a BRCGS or SQF auditor?

Auditors want continuous records, evidence that out-of-range readings were spotted and acted on, and the corrective action that followed. Sensor Hub keeps every reading and links each alert to the task that handled it, with who responded, when, the cause and photos of the stock, so the evidence is one search away.

What is the Free Exposure Analysis?

A 20 to 30 minute call where we look at how your sites would handle a failed or compromised chiller today, then show you where you’re exposed and what closes each gap. Your written report follows within five days, and it’s yours to keep whether you work with us or not.

What is Sensor Hub?

Sensor Hub is the part of mpro5 that connects your temperature sensors, keeps every reading, raises an alert the moment a unit goes out of range and turns it into a task for the people on shift. It lives in the same app as your checks, so the alert, the response and the proof all sit in one place.

Do we need new sensors?

Not necessarily. Sensor Hub works with sensors from a range of suppliers, so we can start with what you already have. If you have none, we’ll recommend options that suit your sites.

Would it still work if our refrigeration controls were hacked?

It depends how your sensors connect. Sensors that report over their own connection, rather than through the refrigeration controller, keep reporting. We’ll check yours on the call.

Who gets the alert after hours or at the weekend?

Whoever you decide, whether that’s the shift manager, the on-call technical manager or your refrigeration contractor. If they don’t pick it up, it goes to the next person on the list.

Does it replace our paper temperature logs?

Sensors take over the routine readings for every unit they’re fitted to, and the checks you still do by hand, like receiving temperatures, sit in the same app with the same record.

Can we start small?

Yes. You can start with your highest-risk cold stores, prove that the second view and the alert process work, and then roll out across your sites with the same onboarding team.

What does it cost to get set up?

Onboarding’s free. Our own team sets up your sensors, alerts and escalation with you and helps you roll out, so there’s no consulting bill before you see any value.

Free Exposure Analysis

See how exposed your cold chain is

On a 20 to 30 minute call, we look at how your sites would handle a failed or compromised chiller today, and show you:

  • How an after-hours alarm becomes a completed task, with the right person on it.
  • How Sensor Hub connects the temperature sensors you already use.
  • How your monitoring could carry on if a refrigeration controller is compromised.
  • A written report within five days that’s yours to keep, whatever you decide.

There’s nothing to prepare. You’ll speak to someone who knows the standards you work to, and the report is yours to keep whatever you decide.

Not ready for a call? Click through the interactive demo now, it starts straight away.

Walk away knowing which of your sites would catch a failing chiller in time, and which wouldn’t

How long before a warm chiller reaches your dashboard?

If it takes until the next shift or the next manual check to find out, that gap is your biggest risk. Find out where your sites stand in 30 minutes, free.

Get my Free Exposure Analysis

Before you go, see the chiller alert play out

Follow a factory chiller alert from sensor to sign-off. It starts straight away, no call needed.

Book a demo