Precision you can trust: ISO/IEC 17025 Accredited Calibration

Trusted, certified and globally recognised accuracy.

Temprecord operates an ISO/IEC 17025-accredited calibration laboratory, authorised by IANZ (International Accreditation New Zealand) to issue endorsed calibration certificates for temperature and humidity.

Every Temprecord calibration is performed to international standards, ensuring traceable accuracy, audit-ready documentation, and full compliance for regulated industries worldwide.

Each calibration is issued as a combined or shared certificate, including:

3-point correction for Temperature

2-point correction for Humidity

This comprehensive dual-parameter process ensures complete traceability and accuracy across your Temprecord data loggers.

For standard three-point temperature calibrations, Temprecord achieves:

±0.2 °C over the range –20 °C to +50 °C (or –40 °C to +50 °C for low-temperature loggers)

±0.8 °C across cryogenic points at –196 °C, –90 °C and –38 °C

Fahrenheit equivalence:

±0.36 °F over the range –4 °F to +122 °F

Cryogenic points: –320.8 °F, –130 °F and –36.4 °F

All uncertainties are expressed at a 95 % confidence level with a coverage factor (k = 2), tested at an ambient temperature of 24 ± 4 °C.

The ITS-90 temperature scale is used, and calibration certificates display results in both °C and °F.

Temprecord relative humidity (RH) loggers are laboratory-calibrated with an expanded uncertainty of ±3 % RH across the range 12 % to 85 % RH, tested at a dry-bulb temperature of 20 °C to 30 °C.

All uncertainties are expressed at a 95 % confidence level with k = 2.

Calibration integrated from the start

Temprecord’s calibration laboratory techniques — developed as part of our ISO/IEC 17025 accreditation — make 3-Point Calibration a standard process during the manufacture of all General Use, Scientific, and RH data loggers.

After assembly, each logger is precisely calibrated at:

–15 °C, 0 °C and +40 °C, or –38 °C, 0 °C and +40 °C for low-temperature probes, with optional specified points such as –80 °C.

This method achieves an accuracy of:

±0.2 °C (±0.36 °F) across –20 °C to +50 °C (–4 °F to +122 °F), or –40 °C to +50 °C (–40 °F to +122 °F) for low-temperature probes.

A range of –80 °C / 0 °C / +80 °C provides ±0.8 °C accuracy.

From Curve to Correction

An un-calibrated data logger typically displays a curved accuracy line deviating from true values. Temprecord’s 3-Point Calibration process applies precise correction factors at each temperature point, flattening the accuracy curve and ensuring stable, linear performance across the full measurement range.

Precision that’s built-in

This level of accuracy is possible only when a logger’s software can store and apply correction data internally. Temprecord is among the few global manufacturers that economically embed these correction factors into each individual logger, not just issue a paper certificate. While some manufacturers provide static calibration certificates, those merely list correction points — they don’t apply them. Without true software correction, a calibration certificate simply tells you how inaccurate a logger is.

Three-Point Temperature & Humidity Calibrations
Precision You Can Measure

Temprecord’s ISO/IEC 17025-accredited laboratory provides highly accurate three-point temperature calibrations and two-point humidity calibrations for all data loggers.

Each calibration is traceable, verified, and routinely reported to industry-recognised uncertainty values — ensuring confidence in every reading.

Temperature Calibration Performance

Below are our typical calibration ranges and corresponding best measurement uncertainties.
‍

All humidity calibrations are performed under controlled environmental conditions, providing traceable, repeatable results for compliance and validation.

Why This Matters
•        ISO/IEC 17025-Accredited Laboratory (IANZ)
•        Traceable, Repeatable, and Certified Results
•        Extensive Range – from –196 °C to +110 °C
•        Comprehensive Temperature & Humidity Testing
•        Optimised for Pharmaceutical, Food, and Research Industries

Certification Documents
‍
ISO/IEC 17025:2017
IANZ – NZS ISO/IEC 17025:2017 Certificate of Accreditation for Temprecord International Limited – PDF

Scope of Accreditation Certificate for Temprecord International Limited – PDF

ISO 9001
SGS – AS NZS ISO 9001:2015 – Certificate of Accreditation 2023 – 2026 for Temprecord International Limited – PDF

SGS Directory of Certified Clients Entry for Temprecord International Limited

NIST Traceability
Temprecord are able to provide NIST traceability. [This is realized by sending a reference thermometer standard to be calibrated at a duel NIST and ISO17025 accredited calibration laboratory in the USA.]

This document was prepared by International Accreditation New Zealand (IANZ) – a crown entity established under the Testing Laboratory Registration Act, 1972.
‍
IANZ Accreditation – your assurance of technical competence – PDF
This document outlines the role of independent testing laboratories in the provision of certification services.
‍
The document was prepared by International Accreditation New Zealand (IANZ) – a crown entity established under the Testing Laboratory Registration Act, 1972.

CE Mark
Temprecord’s Quality Management System assures that our products conform to the directives established by the European Economic Union and comply with the essential requirements including safety, health, environment and consumer protection.

‍