Temperature monitoring
Wireless temperature monitoring for fridges and freezers
Spend your time on your core business. Wireless sensors track every fridge and freezer around the clock, report in real time and send instant SMS or e-mail alerts, and the documentation for your self-inspection is created automatically.
What you gain
Manual checks replaced by automatic monitoring.
24/7 monitoring
Full control of storage temperatures wherever you are. Instead of one manual check a day, the sensors measure continuously.
Automatic documentation
HACCP self-inspection documentation based on good hygiene practice is generated automatically and sent to you by e-mail as reports.
Instant alarms
SMS and e-mail alerts as soon as a temperature deviates, so you can act before products are lost.
Support when you need it
Daytime telephone support for quick help.
A temperature monitoring system you can afford
Sensor-Online makes professional temperature monitoring accessible without compromise. There are no heavy upfront investments, only a low start-up fee and a fixed monthly subscription based on how many fridges or freezers you want to monitor.
The service is independent of your existing systems, easy to set up and has no binding or notice period. It is developed for smaller grocery stores, cafés and restaurants that need reliable monitoring at a reasonable cost.
Fits all refrigerators and freezers
The system works with every type of refrigerator or freezer, new or old, plug-in or built-in. It uses modern IoT technology where all functions, data and settings are managed in the cloud.
No costly central unit is needed, and you do not have to rebuild or modify your equipment. Everything is simple to set up and ready to use.
Installation in a few minutes
The wireless, battery-powered temperature sensors have a range of up to 3 km and can run for up to 5 years on a single battery. Installation needs no wiring, extra pipes or specialist help.
Place a sensor in each fridge or freezer, insert the battery and the system starts recording immediately. Log in to name your measuring points, set alarm thresholds and choose who receives alerts and reports. The whole setup takes only a few minutes.
Scan a QR code to see live data
Live values and historical trends help you protect valuable goods and react quickly if temperatures go out of range. Staff can scan the QR code on a unit to see its live data and full history, anytime and anywhere, without extra hardware or manual logging.
How it works
From sensor to alarm in four steps.
Place
Put a sensor in each fridge or freezer.
Set up
Name the measuring points and set alarm thresholds.
Get alerts
SMS and e-mail when a temperature deviates.
Document
Reports for your self-inspection arrive by e-mail.
Related solutions
IoT for retail and supermarkets
Read more →Cold chain with IoT
Read more →IoT for healthcare facilities
Read more →Frequently asked questions
How does wireless temperature monitoring work?
A battery-powered sensor in each fridge or freezer measures the temperature and sends it wirelessly to Sensor-Online, which shows live values, keeps the history and sends alerts.
Does it help with HACCP documentation?
Yes. Reports for your self-inspection are generated automatically and sent by e-mail. Food safety compliance remains your own responsibility.
What does it cost?
A low start-up fee and a fixed monthly subscription based on the number of fridges and freezers. There is no binding or notice period.
Do I need to rebuild my fridges?
No. The sensors work with new and old, plug-in and built-in units, with no wiring or modifications.
How long do the batteries last?
The sensors can run for up to 5 years on a single battery, and they have a range of up to 3 km.
Want automatic temperature monitoring? Talk to an engineer.
Tell us how many fridges and freezers you have, and we will suggest a setup.