Monitoring records conditions and warns people when action is needed. It does not correct a fault by itself.
In short: select sensors, alarm routes, data retention and backup power from the risk assessment.
Useful inputs include room air temperature, product-simulation probes, humidity, door status and power failure. A remote platform can notify staff, but alarms need named recipients and an escalation procedure.
Place sensors away from the direct evaporator discharge and other unrepresentative locations. Verify them against a suitable reference and document checks.
For BMS integration, confirm the controller protocol and clearly define which system can change settings. Protect remote access and keep an audit trail where required.
What each device does
| Device | Function | When you need it |
|---|---|---|
| Digital temperature logger | Continuous recording (USB download or wireless/cloud) with high/low alarms | HACCP, retail, and catering food storage |
| Remote monitoring system | Real-time temperature on phone/web; SMS or email excursion alerts; historical reporting | Unattended, out-of-hours, or critical stores |
| Alarm system | High/low temperature alarms, power-failure alarm (battery-backed), and door-open alarm | Freezers and any high-value contents |
Record vs. warning
The logger and the alarm answer two different questions:
- The logger proves, after the fact, that temperature stayed in range — the audit record an inspector or customer asks for.
- The remote/alarm system warns you while there is still time to act — a supply failure, a door left open, or a fault developing.
A serious store needs both: the record for compliance and the alert to prevent loss. If alarms trip repeatedly, treat it as a fault to diagnose — see Temperature problems.
Related articles
- Cold room accessories: an overview
- Safety equipment
- Door accessories: strip & air curtains
- Temperature problems
- Food safety & HACCP compliance
Device availability and ratings vary by configuration and are confirmed at quotation. For current options and pricing, contact [email protected].
