Calibration services

Calibration involves a comparison of readings between the instrument being calibrated and the reference instrument (also called reference standard) in specific conditions. 

Other important aspects of calibration include documenting any deviation recorded, calculating and recording the resulting measurement uncertainty, adjusting the results to comply with the reference where possible and creating the calibration certificate. 

The Testo calibration lab has state of the art reference equipment to ensure we complete your calibration within ISO guidelines. 
Additionally, we have an automated system that registers your instrument history and sends you a reminder email when your instrument is due for its next calibration. 

If you require your instrument to be calibrated to a special standard (NATA) please contact our service department. 

We also offer on-site service and calibration to all our customers based in Victoria, please contact our service department for more information 

All our calibration experts are specially trained on our range of Testo instruments and are available to answer your questions.

Contact Testo Service

(03) 8761 6108 - Select Option 3

Parameters Testo Calibrate


  • Air temperature thermometers/portable data loggers in the range of -20 to 150 °C
  • Immersion thermometers in the range of -20 to 600 °C
  • Surface measuring probes in the range -20 to 150 °C

Humidity and Dew Point

  • Thermal hygrometers/portable data loggers in the range of 5 to 95 %RH, over a temperature range of 0 to 50 °C
  • Dew point in the range of -20 to 50 °C


  • Digital manometers and gauges in the range 40 bar
  • Barometers in the range of 0 to 250 hPa

Infrared Temperature

  • IR thermometers and Thermal Imagers in the range of -20 to 140°C

Air Velocity

  • Vane anemometers up to 100 mm in the range of 0 to 100 m/s
  • Thermal anemometers in the range of 0 to 10 m/s
  • Pitot tubes in the range of 0 to 10 m/s


  • Mutli-meters
  • Clamp meters
  • Current/Voltage testers
  • Voltage testers

Light & Sound



  • Light meters in the range 0 to 10,000 Lux
  • Sound level meters at 94, 104 and 114dB at 1 kHz
  • Sound level calibrators at 94, 104 and 114dB at 1kHz

On-site Calibration


On-Site Calibration services:

  • Temperature
  • Electrical ( Testing Tools)