SAC-SINGLAS Accredited · ISO/IEC 17025
Stopwatch / Precision Timer Calibration in Singapore
Unitest calibrates stopwatches and precision timers in Singapore across 1 s to 10,800 s, 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 Timer · Stop Watch · Digital Timer
Why calibrate?
Unitest calibrates stopwatches and precision timers in Singapore over a range of 1 s to 10800 s (3 hours), with SAC-SINGLAS accredited ISO/IEC 17025 certificates. Timing devices used for reaction time measurement, speed testing and process timing must be calibrated to ensure accuracy.
What you receive
What stopwatch / precision timer 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 timer & stopwatch calibration service, accredited under SAC-SINGLAS LA-2023-0845-C.
How often
How often should a stopwatch / precision timer be calibrated?
Stopwatches and timers should be calibrated every 12 months. Instruments used in regulated test procedures or safety timing applications should carry a current certificate.
Accredited ranges
Stopwatch / Precision Timer 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.
Calibration of Stop Watch Timer· UNI-E006 Rev:0
| Range / measured quantity | Measurement uncertainty (CMC) |
|---|---|
| 1 s – 60 s | 0.25 s |
| 61 s – 600 s | 0.13 s |
| 601 s – 1200 s | 0.13 s |
| 1201 s – 1800 s | 0.13 s |
| 1801 s – 3600 s | 0.13 s |
| 3601 s – 7200 s | 0.13 s |
| 7201 – 10800 s | 0.13 s |
You can also verify our accreditation on the SAC-SINGLAS directory.
Questions
Stopwatch / Precision Timer calibration FAQ
How often should a stopwatch / precision timer be calibrated?
Stopwatches and timers should be calibrated every 12 months. Instruments used in regulated test procedures or safety timing applications should carry a current certificate.
Is stopwatch / precision timer calibration accredited?
Yes. Stopwatch / Precision Timer calibration is covered under our SAC-SINGLAS scope of accreditation (LA-2023-0845-C, ISO/IEC 17025), covering 1 s to 10,800 s. 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 stopwatch / precision timer 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 stopwatch / precision timer?
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.
Need stopwatch / precision timer calibration?
Submit your instrument list — we'll confirm capability, turnaround and pricing, no obligation.