
Pressure reference
Pressure reference standards
Pneumatic & hydraulic reference across low- to high-pressure ranges, with traceable certificates.
Calibrated in-house · traceable to national standards
Calibration Laboratory
Electrical CalibrationTemperature CalibrationNon-Contact TemperatureFix-Point TemperatureHumidity CalibrationPressure CalibrationOscilloscope CalibrationChamber / Freezer CalibrationDigital Scale CalibrationTachometer CalibrationLiquid Bath CalibrationTimer / Stopwatch CalibrationOn-Site CalibrationDedicated to accuracy in the digital world
Multimeters, clamp & insulation testers, calibrators and power instruments.


What we calibrate
From electrical and pressure to temperature, humidity and mass — one accredited laboratory for the instruments your operation depends on.
Multimeters, clamp meters, insulation testers
Gauges, transducers, transmitters
Thermometers, RTDs, thermocouples, loggers
Hygrometers, RH probes, data loggers
Oscilloscopes, signal generators, power supplies
Balances, scales, weight sets
Our equipment
We invest in high-precision reference equipment so your measurements are accurate, traceable and audit-ready — every instrument calibrated in-house against standards traceable to national references.

Pressure reference
Pneumatic & hydraulic reference across low- to high-pressure ranges, with traceable certificates.
Calibrated in-house · traceable to national standards

Electrical reference
Multifunction calibrators & precision meters.

Temperature reference
Dry-blocks, baths & reference thermometers.

On-site · Islandwide
Our engineers bring traceable reference standards to your facility — cutting downtime and the risk of moving fixed or mission-critical instruments. Same accredited result, none of the logistics.
Why Unitest
It comes down to what your auditor and your operation actually need — accredited competence, real traceability, and people who understand the instruments you run.
Independently assessed technical competence to ISO/IEC 17025 — not a generic functional check.
Every result links through an unbroken chain to the SI via Singapore's National Metrology Centre, with stated uncertainty.
Bring instruments to our lab, or have our engineers calibrate on-site to minimise your downtime — islandwide.
A traceable certificate your auditor will accept in ISO 9001, ISO/IEC 17025 and regulated-industry audits.
Backed by 20+ years of instrument expertise and a management team with decades of combined experience.
We remind you when each instrument is due, so nothing quietly drifts out of calibration before your next audit.
Our solutions
One accredited laboratory for your full instrument fleet — in-lab or on-site, with traceable ISO/IEC 17025 certificates.












In the lab
Our laboratory is equipped with well-maintained precision measuring equipment. The standards and instruments used for calibration are regularly checked and proactively maintained to ensure accuracy and consistency — and to identify problems in time.
Our operating procedures and good laboratory practices help us achieve accurate measurement results and issue suitable calibration certificates. Working to ISO/IEC 17025 methods, our reference standards provide sound traceability to recognised national and international standards.
We understand the importance and value of your equipment — which is why our service includes freight transportation.
How it works
A simple, accredited process that keeps your instruments accurate and your audits painless.
Send us your instrument list or enquiry.
We review and send a tailored quotation.
In-lab or on-site calibration is performed.
You receive a traceable calibration certificate.
We remind you before the next calibration is due.
FAQ
Yes. Unitest operates a SAC-SINGLAS accredited calibration laboratory in Singapore, accredited to ISO/IEC 17025 (accreditation no. LA-2023-0845-C). An accredited certificate carries independently assessed methods and a stated measurement uncertainty — the assurance ISO 9001 auditors and regulators look for. For non-critical checks we can also provide traceable, non-accredited calibration; we'll advise which your application needs.
Both. We calibrate in our Singapore laboratory and on-site at your premises. On-site suits fixed or heavy equipment and larger instrument fleets at one location — it removes shipping and downtime — while in-lab is usually simpler and more economical for individual portable instruments. Tell us your instruments and location and we'll recommend the most cost-effective option.
We calibrate across electrical, temperature, non-contact (infrared) and fixed-point temperature, humidity, pressure, oscilloscopes, digital scales, tachometers, liquid baths and timers/stopwatches — covering multimeters, clamp and insulation testers, data loggers, transmitters, thermometers, pressure gauges and more. If you're unsure whether your instrument is in scope, send us the make and model and we'll confirm.
Calibration is priced per instrument. The cost depends on the instrument type, the number of calibration points and ranges, whether the work is accredited, and whether it's done in-lab or on-site — so there is no single price list. Send us your instrument make, model, quantity and the ranges you actually use, and we'll return a clear, itemised quotation. Batching a fleet of instruments into one job is the easiest way to lower the per-instrument cost.
There is no universal interval — it's a risk-based decision driven by how the instrument is used, manufacturer guidance, your quality system, and the instrument's calibration history. Many instruments are calibrated annually, but critical or heavily-used equipment may need it more often. We can help you right-size each instrument's interval from its usage and history, so you neither over-spend nor risk an out-of-tolerance surprise at audit.
We calibrate
From Fluke and Yokogawa to Druck, Hioki and Extech — we calibrate the instruments your operation already runs, across electrical, temperature, pressure and indoor-air-quality parameters.









| Electrical | Temperature | Pressure |
|---|---|---|
| Analog Multimeter | Infrared Thermal Imager | Absolute Pressure Sensor |
| Appliance Tester | Infrared Thermometer | Differential Pressure Calibrator |
| Battery Tester | IR Gun / Thermometer | Gauge Pressure Sensor |
| Clamp Meter | Pocket Thermometer | High Pressure Gauge |
| Digital Multimeter | Resistance Thermometer | Low Pressure Gauge |
| Earth Ground Clamp Meter | RTD Thermometer | Pressure Calibrator |
| Earth Ground Tester | Temperature Data Acquisition System | Pressure Transmitter |
| Energy Loggers | Temperature Dryblock | |
| Installation Tester | Temperature Transmitter | |
| Insulation Tester | Thermistor Sensor | |
| LCR Meter | Thermocouple Sensors | |
| Loop Calibrator | Thermocouple Thermometer | |
| Multifunction Tester | Temperature Oven / Freezer | |
| Oscilloscopes | Incubator | |
| Power Analyzer | Timer | |
| Power Loggers | Dewpoint | |
| Humidity Transmitter | ||
| Humidity & Temperature Meter | ||
| Hygrometer |
Don't see your instrument? Ask us — the list above is a sample of our capability.
Get in touch
Tell us what you need calibrated and we'll send a quote, fast. In-lab or on-site, islandwide.
