Case study · Pharmaceutical, food and logistics
Sensors where the data says, not where the cable reaches
TeDaC and JTF have worked together since the late 2000s, before JTF was founded in 2012. TeDaC studies how cold rooms, freezers and stores behave; JTF installs and runs the monitoring to that design, so each sensor sits where it tells you something.

- Customer
- TeDaC (partner)
- Sector
- Pharmaceutical, food and logistics
- Rules it served
- MHRA GDP and GMP
- Partner
- TeDaC
- Working together since
- The late 2000s
- Sites
- Pharmaceutical, food and logistics storage
The problem
A monitoring system is only as good as where its sensors are. A probe fitted by the door because that's where the cable reached can miss the warm corner where stock actually sits, and an inspector will ask why it's there.
Pharmaceutical and high-risk food sites work under GDP and GMP, where the MHRA expects data integrity, a full audit trail and documented handling of every deviation. The sensor positions have to be defensible from the start.
What we did
The partnership began when Chris, a director at TeDaC, worked with Jake Farrow on fixed monitoring installations in the South West. When Jake founded JTF in 2012, the work carried on.
TeDaC carries out temperature mapping studies in cold rooms, freezers and ambient stores, finding hot and cold spots and airflow patterns, and recommends sensor positions from what it finds. JTF then:
- installs the fixed monitoring system and configures it to the mapped design;
- supports IQ and OQ qualification, so QA has the documents it needs;
- runs alarms, dashboards, excursion logs and reports on the Sematics platform, with alerts by SMS, email or the dashboard;
- provides calibration for every sensor we supply: traceable to national standards as standard, or UKAS accredited where you need it (temperature in our own UKAS accredited calibration laboratory No. 10723; other parameters through accredited partners);
- keeps the system maintained, updated and supported, with training for the people who use it.
The result
Sites get a monitoring set-up designed from how their own spaces behave, not guesswork, and a record that runs from sensor placement through qualification to the daily readings an auditor asks to see.
The same approach works for a single cold room or a network of sites, fixed stores or vehicles.
In figures
What changed, at a glance
- Mapping studyHot and cold spots found
- Monitoring installedTo the mapped design
- IQ and OQQualification supported
- CalibrationAnnual, accredited
Related
If this sounds like your site
Temperature mapping
How a mapping study sets probe positions you can defend.
Read moreValidation (IQ OQ PQ)
Qualification of the monitoring system and the documents your QA team needs.
Read morePartners
The organisations we work with, and what each one does.
Read more
Source: Partnership story published on jtfwireless.com. The figure: JTF Wireless company records.
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