For temperature sensors, probes, loggers and thermometers

Temperature calibration your auditor can trace

An expired certificate, or one that can't show traceability, can put a year of readings in doubt. Every sensor we supply is calibrated: traceable to national standards as standard, or UKAS accredited where you need it, with temperature calibrated in our own UKAS accredited calibration laboratory No. 10723.

  • Traceable as standard, or UKAS accredited in our calibration laboratory No. 10723 (ISO/IEC 17025)
  • In our Tamworth lab or on your site
  • A certificate for each sensor, with due dates tracked
Reference probe, air chamber10:15

20.02°C

Within range · alarm limits 19.50 to 20.50 °C. Example reading.

The short answer

What does UKAS temperature calibration cover?

Our accreditation as UKAS accredited calibration laboratory No. 10723 (accredited to ISO/IEC 17025) covers temperature indicators and recorders with their sensors: probes and thermometers read with their own display or logger, in a dry block from −90 °C to +135 °C, and whole loggers and wireless sensors in an air chamber from −35 °C to +40 °C, in our lab or on site. Bare probes without an indicator, liquid-in-glass and infrared thermometers are not on our scope. Humidity, CO₂ and other parameters go to accredited partner laboratories, which issue their own certificate under their own UKAS accreditation number. 10723 is our UKAS laboratory number; ISO/IEC 17025 is the standard we're accredited to.

UKAS accredited calibration laboratory No. 10723

Accredited to ISO/IEC 17025 for temperature calibration, in our Tamworth lab and on site. 10723 is our UKAS laboratory number; ISO/IEC 17025 is the standard we're accredited to. Our accreditation is limited to those activities described on our UKAS schedule of accreditation, found here.

Not covered by this accreditation: monitoring, mapping, validation, our traceable (non-accredited) calibrations, and calibration of humidity, CO₂ and other parameters, which go to accredited partner laboratories.

The lab in figures

What our UKAS scope covers, and how much calibration we do

Our UKAS scope: temperature ranges
Dry block · best uncertainty 0.07 °C−90 to +135 °C
Air chamber · best uncertainty 0.24 °C−35 to +40 °C

In our Tamworth lab or on your site. Anything outside these ranges, and humidity, CO₂ and other parameters, go to accredited partners.

10,000+

sensor calibrations a year

Traceable and UKAS accredited, across our own lab and our accredited partners.

3,000+

UKAS accredited calibrations a year

UKAS accredited calibrations a year. We tell you which you'll get before we start.

No. 10723

our UKAS accredited calibration laboratory number, accredited to ISO/IEC 17025 for temperature

A certificate for every sensor, held against it in Sematics with its due date.

What's included

Traceable or UKAS calibration for every sensor we supply

Traceable calibration as standard. Where you need UKAS, temperature is calibrated in our own UKAS accredited calibration laboratory No. 10723 and other parameters through accredited partners. We tell you which you're getting before we start.

  • On site, as standard

    We calibrate at your site, so your sensors never leave the building. New sensors are calibrated in our Tamworth lab before they're installed. Both are within our UKAS scope.

  • Traceable calibration

    Tested against reference standards traceable to national standards. The lower-cost choice where no standard, customer or regulator asks for UKAS; the certificate carries no UKAS symbol.

  • UKAS accredited, where you need it

    For ISO 15189 and ISO/IEC 17025 laboratories, or any customer, contract or regulator that names UKAS. Temperature in our UKAS accredited calibration laboratory No. 10723, with the UKAS symbol, our laboratory number and the uncertainty on every certificate.

  • A certificate per sensor, approved by you

    Results as found and, where adjusted, as left, with the error and uncertainty at each point. Each certificate sits against its sensor in Sematics, where your nominated user reviews and approves it, as the HPRA, for example, expects.

  • Other parameters through partners

    Humidity, CO₂ and temperatures above our range (Up to +660 °C) go to UKAS accredited partner laboratories, on their own certificates.

  • Other makes welcome

    Any make of temperature probe, logger or sensor within our scope, not only the ones we supply.

How it works

Book, calibrate on site, certificate, next due date

  1. 01

    Book

    We agree the sensors, the calibration points and a date, and plan the visit around your work.

  2. 02

    Calibrate on site

    Our engineer tests each sensor against a calibrated reference at the agreed points, at your site. Nothing is sent away.

  3. 03

    Certificate

    A certificate for each sensor goes onto it in Sematics, marked traceable or UKAS accredited (laboratory No. 10723), or issued by the accredited partner laboratory.

  4. 04

    Next due date

    The next due date is set against each sensor, and we contact you before it lapses.

Engineers working in the JTF calibration lab and workshop in Tamworth
Our UKAS accredited calibration laboratory No. 10723 in Tamworth

What it covers

Our UKAS scope, and what goes to partners

From the UKAS schedule of accreditation for UKAS accredited calibration laboratory No. 10723. 10723 is our UKAS laboratory number; ISO/IEC 17025 is the standard we are accredited to.

WhatRangeBest uncertainty (k=2)Where
Temperature indicators and recorders with their sensors: probes and thermometers read with their own display or logger (dry block)−90 °C to +135 °C0.07 °COur lab and on site
Temperature indicators and recorders with their sensors: whole loggers and wireless temperature sensors (air chamber)−35 °C to +40 °C0.24 °COur lab and on site
High-temperature probes and electronic thermometersUp to +660 °C, through an accredited partnerAs stated by the partner labPartner lab, on its own certificate
CO₂ in incubators, through an accredited partner on site0 to 20% CO₂As stated by the partner labOn site, on the partner's own certificate
CO₂ gas detectors and analysers, through an accredited partner0 to 20% CO₂As stated by the partner labPartner lab, on its own certificate
Humidity and other parametersThrough accredited partner laboratoriesAs stated by the partner labPartner lab, on its own certificate

Our UKAS accreditation covers temperature calibration only. Bare probes without an indicator, liquid-in-glass and infrared thermometers, and temperatures outside these ranges, aren't on our own scope; high temperatures and CO₂ go through accredited partners, who issue their own certificates under their own UKAS schedules. Traceable calibration is our standard and is not UKAS accredited: we tell you which you're getting before we start.

Questions

What people ask us

What can you calibrate?

Thermometers, temperature probes, data loggers and wireless temperature sensors. Our UKAS accreditation covers −90 °C to +135 °C for probes and sensors read with their own display or logger, and −35 °C to +40 °C for whole loggers and sensors, in our Tamworth lab or at your site.

Do you calibrate humidity and CO₂?

Yes, through accredited partner laboratories, including CO₂ in incubators on site and CO₂ gas detectors in the partner's laboratory (0 to 20% CO₂). Our own accreditation covers temperature only; partner laboratories issue their own certificates under their own UKAS accreditation number.

Is every calibration UKAS accredited?

No. Traceable calibration is our standard: it is traceable to national standards but not UKAS accredited. UKAS accredited calibration is there where you need it. We tell you which you're getting before we start.

When do I need UKAS accredited calibration?

When something you work to asks for it. A laboratory accredited to ISO 15189 or ISO/IEC 17025 is expected to show traceability through an accredited calibration laboratory or otherwise demonstrate it (UKAS TPS 41), and some customers, contracts and regulators name UKAS. Where nothing asks for it, traceable calibration is usually enough, and it costs less.

Can you calibrate on site?

Yes. On-site calibration is inside our UKAS accreditation, where the site suits the work; we agree that with you first.

Can you calibrate other makes of sensor?

Yes, any make of temperature probe, logger or sensor within our scope.

Why does the uncertainty matter?

The certificate states it. If your alarm limits ignore it, a reading near the limit could be out of range without the alarm going off. We can help you set limits that allow for it.

Next step

Calibration due soon?

Tell us how many sensors, probes or loggers, where they are and when they're due. We'll quote in writing and say which work is on our UKAS scope and which goes to an accredited partner.