SAC-SINGLAS Accredited · ISO/IEC 17025
Hygrometer / RH Meter Calibration in Singapore
Unitest calibrates hygrometers and relative humidity (RH) meters in Singapore across 5% to 90% RH at 5 °C to 50 °C, under SAC-SINGLAS accreditation LA-2023-0845-C (ISO/IEC 17025). Standard turnaround is 5–7 working days; express service is 2–3 days, with free collection and delivery in Singapore for orders above $300.
Also known as: Precision Hygrometer · RH Meter · Humidity Meter
Why calibrate?
Unitest provides SAC-SINGLAS accredited hygrometer and relative humidity (RH) meter calibration in Singapore over a range of 5% to 90% RH (at 5°C to 50°C), with traceable ISO/IEC 17025 certificates. Hygrometers drift over time due to sensor contamination and ageing.
What you receive
What hygrometer / RH meter calibration at Unitest covers
Traceable certificate
Calibration certificate with an unbroken traceability chain to national and international standards, recording the as-found condition before any adjustment.
Stated uncertainty
Results reported with measurement uncertainty, so you know exactly how much confidence each reading carries in your quality system.
5–7 day turnaround
Standard turnaround 5–7 working days; express 2–3 working days on request. Free collection and delivery within Singapore for orders above S$300.
Part of our humidity calibration service, accredited under SAC-SINGLAS LA-2023-0845-C.
How often
How often should a hygrometer / RH meter be calibrated?
Hygrometers should be calibrated every 12 months. Pharmaceutical cleanroom instruments are commonly calibrated every 6 months.
Accredited ranges
Hygrometer / RH Meter calibration ranges & measurement uncertainty
The parameters, ranges and calibration & measurement capability (CMC) below are taken from our SAC-SINGLAS Schedule of Accreditation (LA-2023-0845-C, to ISO/IEC 17025). CMC is the smallest measurement uncertainty we can achieve under accredited conditions.
Humidity / Temperature measuring instruments (Lab / Site, Used Reference Probe)· UNI-T009 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| Temperature: 5 °C – 50 °C | 0.3 °C |
| Humidity: (5 – 90) % relative humidity | 2.4 % relative humidity |
Humidity / Temperature measuring instruments (Lab, Used Chilled Mirror)· UNI-T009 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| Temperature 15 °C – 50 °C | 0.2 °C |
| Humidity (40 – 90) % relative humidity | 1.2 % relative humidity |
| Fixed Temperature @23°C (05 – 50) % relative humidity | 0.7 % relative humidity |
| Fixed Temperature @23°C (50 – 90) % relative humidity | 1.1 % relative humidity |
You can also verify our accreditation on the SAC-SINGLAS directory.
Questions
Hygrometer / RH Meter calibration FAQ
How often should a hygrometer / RH meter be calibrated?
Hygrometers should be calibrated every 12 months. Pharmaceutical cleanroom instruments are commonly calibrated every 6 months.
Is hygrometer / RH meter calibration accredited?
Yes. Hygrometer / RH Meter calibration is covered under our SAC-SINGLAS scope of accreditation (LA-2023-0845-C, ISO/IEC 17025), covering 5% to 90% RH at 5 °C to 50 °C. Certificates state the measured values and measurement uncertainty, traceable to national and international standards. Where an instrument falls outside the accredited ranges, we can calibrate it as a traceable service instead.
How long does hygrometer / RH meter calibration take?
Standard turnaround is 5 to 7 working days; express service is 2 to 3 working days. Collection and delivery in Singapore are free for orders above $300.
Can you calibrate my brand of hygrometer / RH meter?
Almost certainly — the makes listed on this site are simply the ones customers most commonly send in. Send us the make and model and our engineers will confirm whether it falls within our accredited scope or can be calibrated as a traceable service.
Related
Related instruments
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Dew Point Meter calibration →Browse every instrument type on the Find Your Instrument page.
Need hygrometer / RH meter calibration?
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