Cold Chain Logistics

Protect your stock and product quality with Celsor.

Celsor quickly and reliably detects cooling equipment faults, removes the manual effort of recording and auditing, and provides intelligent alerts and notifications when they are needed.

SenSys NZ remote-monitoring chilled cabinets

The SenSys Celsor™ provides more than temperature monitoring

Celsor™ is the ideal IoT solution for providing wireless monitoring and alerts for all kinds of controlled or ambient environments.

Installation is simple - Celsors™ may be placed wherever temperature monitoring is needed. They do not require use of local area networks.

Quickly receive alerts if the temperature or humidity rises or falls too far, for too long. Any number of people can be on the roster for alerts by SMS, notification or email.

Suitable for:

cool stores, fridges and freezers in food storage,

mobile facilities,

refrigerated transport and containers,


medical clinics,


market gardens and orchards, greenhouses,

science and research labs.

SenSys NZ Celsor with flying lead

Monitoring Simplified

No wiring! Place the LoRa-enabled Celsor temperature and humidity units almost anywhere at all.

The Celsor comes in a range of models: with a fixed temperature probe, and with 1 meter and 3 meter flying leads, and optional humidity sensing and options of temperature range. One of the best IoT solutions available, the Celsor communicates over LoRaWAN from inside chillers, fridges, freezers, shipping containers and refrigerated transport. SenSys supplies the LoRaWAN coverage equipment (the means to communicate into the internet without using any local area networks).

Simply hang Celsor on a hook or attach to surfaces with screws or ties. They last about 10 years on a battery, advising you when the batteries need changing. If calibration is required annually, the units may be swapped with newly calibrated units and the data collection continues, uninterrupted, for the physical location.

Our customers who have installed Celsor™ in their cool stores, food preparation or office facilities see immediate benefits including:

No wiring, no fuss

Easy self-installation in moments, with the ability to place sensors anywhere, with no restrictions from any wiring. No cellular, no Wi-Fi needed for the Celsor devices.

Prevents contamination between zones

There is no need to physically visit or disturb the location where the monitoring is taking place to obtain temperature and humidity information.

Removes human error and saves time

Reliable and accurate temperature data shows history and trends. There is no reliance on people to notice problems with this perfect 24/7 supervisor on the job. Goodbye clipboard!

Improved machinery care and maintenance

Analysis provides visibility into chiller performance and enables preventative maintenance. Refrigeration machinery problems are easily detected when conditions do not fit normal temperature patterns.

Automated actions and control

If-This-Then-That functions to enable/disable machinery or controls upon specific conditions.

No specialist displays

The display is in your pocket, on your phone App, with management dashboard on any browser. Insert your own site layout map to view temperatures/humidity where there are multiple measurement points.

Alerts when action needed

Immediate knowledge of a problem allows a fast response. Alerts are configurable, with two high-temperature levels and two low-temperature levels allowing consistent and accurate temperature maintenance. Set up your own alerts roster to as many people as required.

Easy data audits and compliance

Temperature measurements are permanently and securely available online, accessed with username/password. Quick access to proof of compliance throughout a selected period or during a delivery.

Add extra sensing points with ease

No specialists needed, simply add in a Celsor™ wherever you want a new sensing point. If you are expanding or need more measurement points, now is the time to upgrade to a modern wireless system.

Celsor™ simplifies temperature and humidity monitoring


– Two sets of configurable high and low temperature alerts per Celsor.

– Alerts sent to rostered users via Push notifications, Emails or SMS.

– History of data and alarms stored permanently.

– Long range - 2km to 15km+, depending on terrain and environment.

– Celsor™ temperature range options:

Fixed probe model: -10°C to 60°C.

1m and 3m flying lead models:-40°C to +125°C

RTD model: -80°C and lower

– Water-resistant rating of IP67.

– Ideal for remote applications.

– Low power, so 5+ years between battery change, with advice when the change is needed.

– Wireless penetration through multiple layers of coolstore walls.

– Available in Base or Flying Lead options.

– Flying lead suitable for point measurement.

– Low-cost annual subscription.

– Updates from SenSys delivered 'over-the-air'.

Need Assistance?

SenSys empowers decision-making by delivering enhanced information, exactly when it's needed.

Learn how our wireless measuring and sensing systems can provide the perfect and most modern solution for your applications.

Contact us for a Demo