Precision measurement
Data Logger Calibration
Eltek offers on-site calibration of temperature and humidity transmitters, with a calibration certificate issued for each instrument. Calibration is carried out against equipment with current calibration certificates traceable to UK National Standards.
The service is designed for organisations that need calibration records for quality management systems and audit purposes.
Why it counts
Readings You Can Rely On
Every reading your monitoring system produces is only as reliable as the sensor behind it. Temperature and humidity transmitters drift over time. A transmitter that was accurate when installed may no longer read correctly months later, and without calibration there's no way of knowing by how much.
For organisations subject to quality management review or audit, that's more than a technical point. Quality management systems and audit bodies typically expect calibration records, and the certificate from each calibration visit is what shows that your readings were checked against a traceable reference at a known point in time.
Museums and heritage collections face a similar requirement: calibration records support collections care decisions and help demonstrate to borrowing institutions that environmental conditions are monitored and maintained.
Eltek is not a UKAS accredited laboratory. If a UKAS-accredited certificate is required for your audit or quality system, Eltek can arrange calibration through a third-party calibration house.
"Without current calibration records, a reading that's later questioned is harder to account for in your quality file."
From enquiry to certificate
How the Service Works
Confirm the scope
We confirm scope and schedule the calibration visit to fit your maintenance routine.
Arrange the visit
Once scope is set, we schedule a visit to fit your maintenance or commissioning operations.
Calibration on-site
Our engineers carry out calibration on your premises using traceable reference equipment.
Certificate issued
You receive a certificate per instrument with readings before and after calibration.
Know what's covered
What We Calibrate and What We Don't
Temperature and humidity transmitters
Eltek calibrates temperature and humidity transmitters from its own GenII range and from Grant Instruments. Calibration is carried out on-site at your premises against reference equipment with current traceable certificates.
- Eltek GenII temperature and humidity transmitters
- Grant Instruments temperature and humidity transmitters
- Other manufacturers' equipment is not normally covered
UKAS-accredited certificates
Eltek is not a UKAS-accredited laboratory. Where your quality system or audit body specifically requires a UKAS-accredited certificate, Eltek can arrange calibration through an accredited third-party calibration house on your behalf. Contact us to discuss your requirements.
Return-to-base calibration
For parameters beyond temperature and humidity, or where wider temperature ranges or higher accuracy standards are required, return-to-base calibration is available. Contact us to discuss your specific requirements.
After calibration
What You Receive
Quality documentation
A certificate per instrument for your quality file, documenting calibration for audit compliance.
Measurement confidence
Transmitters verified against traceable standards give reliable readings for future monitoring.
Planned maintenance
Calibration fits routine maintenance, reducing overhead and keeping your system reliably performing.
National standards
Certificates document readings with full traceability to UK National Standards for audit readiness.
Common queries
Frequently Asked Questions
Who carries out the calibration?
Calibration services are delivered by Eltek or by authorised Eltek partners, with Eltek retaining overall responsibility for the work and its quality.
How do I arrange a calibration visit?
Contact us via our contact page. We'll advise on scheduling, instrument scope and any site access requirements.
How often should I calibrate my data loggers?
Calibration intervals are typically set by your quality management system, sector guidance, or the requirements of your audit body. Contact Eltek to discuss your monitoring requirements.
Tailored for your sector
Calibration for regulated sectors
Life sciences
Regulated life-sciences organisations need calibration records as part of their GxP quality framework. Eltek provides on-site calibration with certificates traceable to UK National Standards, supporting compliance and audit readiness.
Learn more →
Museums and heritage
Museums and heritage collections need calibration records for collections care and loan agreements with borrowing institutions. Professional calibration supports responsible stewardship and environmental compliance to loan partners and funders.
Learn more →For product manuals, technical documentation and equipment guidance, visit the Support section.
Request a Calibration Quote
Contact us to arrange a visit or discuss your calibration requirements.
Where an on-site visit is required, travel costs may apply.