Wireless Refrigeration Monitoring System

A HACPP Certified 24 / 7 temperature monitoring solution that will send an SMS and email alert if temperatures read outside of the set range.

Refrigerator Temperature Monitoring System

The Sentry temperature monitoring system with alarming and compliance reporting is used in a multitude of cold storage applications. This includes cold stores, fridges, cool rooms, freezers, food display cabinets and other temperature critical cold storage applications.  Temperatures are monitored 24 hours a day and can be viewed from any internet capable device (mobile phone, tablet and computer) via a unique website portal or the Sentry App.

Our range of monitoring devices include a probe sensor for bain marie applications and measuring temperature of foods through insertion into food products.

The Sentry temperature monitoring systems is used extensively in a number of industries including primary producers, food processors, cold storage warehouses, supermarkets, food wholesalers and retailers, restaurants, cafes, hotels, caterers, and food transportation.

Our temperature monitoring system is also used in other applications such as vaccine storage in the healthcare, hospital and pharmaceutical industries. We’re even used for computer server rooms and other temperature critical applications.

Money Saving

The low cost of the Sentry temperature monitoring systems presents great value for money, even for small businesses such as restaurants or butchers where the costs associated with stock losses, disposal and replacement resulting from fridge failure can be significant.  These are costs that can be avoided with the Sentry monitoring and alerting system.

Cold Room Temperature Monitoring System

Our cold room temperature monitoring system provides alerts via SMS and Email in the event of fridge and freezer failure. This enables timely corrective actions to be taken to preserve stock and save on considerable stock replacement costs.

Wireless Sentry Temperature Monitoring System

The Sentry temperature monitoring system operates wirelessly and does not require access to a local area network.  The collector unit which receives temperature data from the sensors has a back-up battery that allows the system to continue to operate in the event of an internet or power outage.  Temperature data is sent to our cloud based servers via 4G, providing a fully autonomous monitoring system.  Inbuilt system diagnostics provide alerts in the event low battery power and power outage.

Easy Installation and Calibration

Installation of the Sentry temperature monitoring system is quick and easy. In fact, it can easily be self-installed. The temperature sensors are simply paired to the Collector unit and put into the fridge, freezer, cool room or other cold storage device that you wish to monitor.  The Collector plugs into a standard 240V power outlet and the system is good to go.

While temperature monitoring systems are factory-calibrated and ready for installation, Foodsafe requirements demand that the temperature sensors are periodically calibrated. This task is easily performed with calibration results logged and reported on the Sentry system.

How the Sentry Temperature Monitoring System Works

Our refrigeration monitoring system utilizes wireless digital temperature sensors that are accurate to 0.5°C. A powerful inbuilt transmitter provides extended range allowing the devices to be used on large and heavily built sites where signal strength can be sometimes weakened. With an IP67 rating (IEC Standard 60529), the temperature sensors are impervious to ingress of dust and water and are suitable for areas subject to regular hosing down for cleaning purposes. Wired versions of the temperature sensing devices are also available to the same IEC specifications.

The temperature monitoring sensors send data wirelessly to a collector unit. This unit stores the information and forwards it via 4G to an AFSTC cloud-based server that hosts the Sentry operating platform . Here it is constantly monitored and alerts/reports are generated. The collector unit is also rated to IP67 and has an easy-to-read display for instantaneous data readings of all linked temperature sensing devices.

Features & Benefits

The benefits of the cold storage Sentry temperature monitoring system are compelling. Not only does it provide alerts of fridge and freezer failure, it prevents costly stock losses and associated business disruption. It also provides daily compliance reports of the temperatures of your refrigerators, lowering your FoodSafe compliance costs, giving you peace of mind.


  • The Sentry Temperature Monitoring System provides 24/7 real-time monitoring of temperatures and alerts users if temperatures are outside of set points. This allows timely corrective action to be taken to preserve valuable stock.
  • Compliance reports providing accurate data consistent with FoodSafe requirements are automatically generated and sent via email on a daily basis, even on days when the business is closed.
  • The wireless Sentry temperature monitoring system runs on the 4G network and is therefore not Wi-Fi reliant.
  • In the event of a power failure, the backup battery will allow the refrigeration monitoring system to work and will send an alert to notify of the event.
  • Different access levels can be set for Administrator and User roles.
  • Temperature parameters are customised to your needs.
  • Ease and associated low cost of installation – does not require specialist trades (can be self-installed). You simply require a standard 240V outlet for the collector unit.
  • Sensors are easy to calibrate and calibrations are logged automatically on the system.
  • Single Collector unit can handle up to 36 temperature sensors.
  • System has inbuilt self-diagnostics and sends alerts for weak battery, weak signal strength, power and 4G outages.
  • Dual cloud-based servers provide 100% back-up in the event of a server outage.
  • The system allows a full audit trail from temperature sensor through to receival of alert notification and compliance reports.
  • The Sentry temperature monitoring system is HACCP Certified.
  • The system has a five year warranty (excluding batteries).


Compliance and more detailed operational reports are automatically generated and sent daily via email. Users can access the reporting system through a unique portal on the Sentry Temperature Monitoring website or via the Sentry App for history and real time information.

Download a copy of our brochure as a PDF.


“View temperature monitoring in real time on any internet capable device”

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