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How Do We Make Sure a Reefer Temperature Alarm at Two in the Morning Actually Reaches Someone?

Cold chain reefer alarms go to a portal inbox nobody watches at night. We route alarms by severity to the on-call person, with escalation and a record.

Updated 2 min readBy SpiderHunts Technologies

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Quick answer — TL;DR

Reefer and cold store alarms often go to a telematics portal or a shared email address that nobody watches overnight or at weekends, so problems are discovered in the morning. We build alarm routing that filters noise, sends real alarms to the on-call person by call or text, escalates if nobody acknowledges, and records what was done.

The alarm was raised at 02:14 and read at 07:40

A trailer parked at a customer's site overnight, loaded for an early drop, has a fridge unit that shuts down on a fault. The unit raises an alarm. The telematics portal logs it and sends an email to the transport inbox, along with forty other notifications from that night: door opens, low fuel, geofence entries.

The night planner, if there is one, is dealing with drivers. By the time someone reads the alarm in the morning, the load has been warm for hours and the customer is about to reject it.

Why alarms go unseen

The alarm system works. The routing does not. Every event from every unit goes to the same place, in the same format, and the important ones are buried.

  • All telematics notifications go to one shared inbox.
  • Genuine temperature alarms look the same as routine door and fuel events.
  • There is no on-call rota tied to the alerts.
  • Nobody knows if an alarm has been seen, so nobody knows to escalate.
  • Actions taken are not recorded against the alarm.

What a missed alarm costs

A rejected load is the direct cost: product, collection, disposal and a redelivery if one can be made. The customer relationship takes a knock, and repeated incidents can put contracts at risk.

Even when the product is fine, not being able to show that an alarm was seen and acted on makes every conversation with the customer harder.

How we get the right alarm to the right person

  1. We take the event feed from your reefer telematics and, if you want, your cold store monitoring, into one alarm service.
  2. Rules you set decide what matters: temperature outside the load's range for longer than a set time, unit shutdown, communication loss while loaded. Routine events are logged but not alerted.
  3. Alarms go to the on-call person from a rota you maintain, by phone call and text, with the unit, the load, the customer and the location.
  4. The person acknowledges with one tap. If nobody acknowledges within the time you set, the alarm escalates to the next person.
  5. Actions are recorded against the alarm: driver called, unit restarted, load moved, customer informed.
  6. Every alarm, acknowledgement and action is kept, so you can show the history to a customer or auditor.
EventTreatment
Door opened at a dropLogged, no alert
Temperature out of range brieflyLogged, alert if it persists
Unit shutdown while loadedImmediate call to on-call
Unit stopped reporting while loadedAlert after the time you set

The thresholds and the response are yours, set by your quality team and your customers' requirements. We make sure the alarm is delivered and the response recorded.

What the night shift looks like after

The on-call person gets a small number of alerts that matter, with enough detail to act immediately. If they are asleep and miss it, the next person gets the call. In the morning, every alarm has a record of what happened, and the transport inbox is back to being useful.

Are your alarms reaching anyone?

  • Temperature alarms go to a shared email inbox.
  • Alarms at night are found the next morning.
  • Real alarms are buried among routine notifications.
  • There is no escalation if an alarm is missed.
  • You cannot show a customer what was done about an alarm.

FAQ

Frequently asked questions

The questions readers ask us after this guide.

Still have a question?

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Ask about your project

Can it cover cold stores as well as trailers?

Yes, if the store's monitoring system can send events or has an API. The same rota and escalation can apply.

Will it wake people up for nothing?

Only if the rules allow it. We start from your real alarm history and tune the rules with your team to cut out noise.

Do we need a night controller?

Not necessarily. On-call routing lets whoever is on the rota respond from their phone.

What drives the cost?

How many telematics sources you have, how detailed the rules are and whether you want calls as well as texts.

What do you need from us?

Access to your telematics event feed, a sample of past alarms and your on-call arrangements.

Keep reading

More on Problems We Solve

Start here

Tell us where your temperature records and alerts fall down

Describe your fleet or cold store, the reefer units and telematics you run, and how temperature data is collected and shared today. We will tell you what we would build and what we would leave alone. Your quality team and your customers' specifications keep every decision about product safety.

  1. You tell us what you needTwo minutes on the form, or a message on WhatsApp.
  2. A senior engineer reviews itAnd comes back with questions, a realistic range and an honest view on fit.
  3. Free 30-minute scoping callWe talk through scope, options and a realistic estimate — with no obligation.
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