Sematics by JTF
Every reading, alarm and record, ready for the inspector
Sematics is the monitoring platform JTF builds and runs. It watches 10,000+ sensors at 350+ UK sites, gets an alarm to a person who can act, and keeps the evidence your assessor will ask for.
Live from the platform
The Sematics platform has stored over 20 billion messages
Every reading, alarm, acknowledgement and note is kept. The counter ticks at the platform's rate of about 11 million messages a day.
20,023,580,168
Messages stored by the Sematics platform
Since 2019 · live estimate
- 10,000+sensors monitored
- 350+UK sites monitored
- 27device types in use on Sematics
- 330+LoRaWAN gateways connected to Sematics
The overview
One screen for every unit on site
Open incidents, performance and completeness at the top. Every fridge, freezer and room with its live reading underneath, and the map or floor plan to find it.

Two-minute tour
See Sematics working
Readings, alarms, incidents and reports in under two minutes, from the people who build it.
Or watch it on YouTubeWhat it does
Built around what an assessor asks to see
Not a dashboard you have to watch. Sematics raises the alarm, keeps notifying until someone owns it, records the corrective and preventative action, and turns the week into a report.
Alarms that reach a person
Email, SMS, voice call and app push, in the order you set, with a wait between each step and shift patterns for nights and weekends.
Learn more about alarms that reach a personAn audit trail with CAPA
Every incident goes from opened to acknowledged, root cause, corrective and preventative action, then closed. The report shows anything still missing.
Annex 119 Audit trails
Learn more about an audit trail with capaReports that write themselves
Weekly compliance checks and performance reports on a schedule, as PDF, to the people who sign them off.
Annex 118 Printouts
Learn more about reports that write themselvesCertificates on the sensor
Calibration certificates sit on each device. Temperature is calibrated in our own UKAS accredited calibration laboratory No. 10723; other parameters through accredited partners.
Learn more about certificates on the sensorOne platform for every sensor
LoRaWAN, Bluetooth and cellular trackers side by side, and the older sensors you already have still supported while you plan a move.
Learn more about one platform for every sensorData that leaves when you need it
CSV exports, scheduled PDFs, webhooks and an API with keys you control.
Annex 118 Printouts12 Security
Learn more about data that leaves when you need it
EU GMP Annex 11
Mapped clause by clause
For regulated sites, each area of Annex 11 is covered in the Sematics validation programme, with who is responsible for what. Pick a clause to see how it's met.
6 Accuracy checks7 Data storage9 Audit trails10 Change and configuration management11 Periodic evaluation12 Security16 Business continuity17 Archiving
From the guidance
How Sematics meets the guidance
What the guidance asks for, and where Sematics does it. Some points are regulatory requirements; others are our recommendations where the rules are silent. Each links to the page that explains it.
| The guidance asks | In Sematics | Read the guidance |
|---|---|---|
| Check the monitoring every day, or twice a day | Intraday check reports | Vaccine fridges |
| Record each deviation and the action taken, and tell the RP | Incident record and CAPA | Wholesalers |
| Review alarms every week and the records every month | Weekly and monthly compliance checks | MHRA and HPRA |
| Record every excursion with its peak and duration | Excursion record | Excursions |
| Set alarm delays from your own data, with none on the blood product alarm | Alarm limits and delays | Monitoring and alarms |
| Escalate out-of-hours alarms to a named chain | Escalation by SMS and voice | Power failures |
| Test the whole alarm path, end to end | Notification log | Monitoring and alarms |
| An audit trail and a personal login for every user | Audit trail | Records and data integrity |
| Keep records for the whole retention period | Retention and exit export | Records and data integrity |
| Monitoring that does not depend on the unit's controller | Independent monitoring | EN 12830 |
| Recorders designed to meet EN 12830 where it matters | Sensors designed to meet EN 12830 | EN 12830 |
| A buffered alarm probe, so door openings don't trip it | Sealed internal sensor | Where the guidance differs |
| Calibrate every probe each year, with the certificate on file | Calibration certificates: review and approval | Monitoring and alarms |
| BRCGS: automated recording with alarms, and documented checks | Intraday check reports | BRCGS (food) |
3D plan view
See the building, not a list
Sematics shows your floor plan in 3D, with every sensor where it really is. Scrub back through the night to see when a room warmed and what was going on around it.

- Live state on the planReadings, signal and battery on each sensor
- Replay any nightA timeline from live back through history
- 2D or 3DSwitch views, filter by zone or kind
The evidence
What you hand the inspector
Three real outputs, names masked: a weekly compliance check, a performance report for one unit, and a UKAS calibration certificate opened from the sensor.



Coverage
Installed in 2026
Sematics Unify launched in January 2026. These are the sensors and gateways installed on it since, by how they connect, across all Sematics accounts, read from the platform on 18 October 2026.
- LoRaWAN node sensorsTemperature, PT100, humidity, door, energy and inputs1,900+
- BluetoothTemperature and humidity750+
- Cellular GPSVehicle trackers, Coldtainer and Medibox680+
- LoRaWAN gatewaysInstalled and managed by JTF330+
27 device types in use on Sematics, monitoring 10,000+ sensors. Most installed sensors are still on our earlier systems, and we keep supporting them: legacy sensors. Aggregate figures across all Sematics accounts, read from the platform on 18 October 2026.
Sematics by JTF
Know what you need?
Tell us your sites, units and the services you want, and we'll send a written quote. If you'd rather talk it through first, call us.
or call 0121 794 8092