10-Year Warranty on Selected Pulsar Products

Selected products include an extended 10-year warranty when calibrated annually.

Online Training with Noise Products

Access our Online Noise Awareness Course at no extra cost when you buy our noise monitoring equipment.

Licence-Free Software with Pulsar Products

Use our software without subscriptions, recurring charges or additional licence fees.

In-House Technical Support Team

Get expert help from our in-house technical support team whenever you need assistance with your equipment.

Acoustic Calibrators

Shop Class 1 and Class 2 acoustic calibrators for field calibration of any make or model of sound level meter and noise dosimeter.

Need Help Choosing or Using Our Products?

Ask our AI Assistant or chat directly with our team.

Book a Call

Call: +44 (0)1723 339715 | Start Chat

Field calibration is essential for accurate and legally compliant noise measurements. An acoustic calibrator allows you to check your sound level meter or noise dosimeter before and after each measurement, ensuring your results comply with occupational noise regulations.

Acoustic Calibrators for Sound Level Meters

Our Acoustic Calibrators provide a stable 1 kHz reference tone at 94 dB, allowing you to quickly field calibrate your sound level meter before and after use. Our acoustic calibrators are available in Class 1 and Class 2, and should match or exceed the class of the sound level meter being calibrated.

Dual-level Acoustic Calibrators for Sound Level Meters and Noise Dosimeters

Our Dual-Level Acoustic Calibrators produce a standardised 1 kHz tone at 94 dB and 114 dB. 94 dB is typically used to calibrate sound level meters, while 114 dB is typically used to calibrate noise dosimeters, allowing a single calibrator to be used across both types of instruments. Our dual-level acoustic calibrators are available in Class 1 and Class 2, and should match or exceed the class of the sound level meter or dosimeter being calibrated.

NoiseBadge Reader Unit with Integrated Calibrator

The NoiseBadge Reader Unit is used to field calibrate the NoiseBadge in accordance with occupational noise regulations. Before and after a measurement, the dosimeter is placed into the calibrator cavity of the Reader, and the Reset and Cal buttons are used to clear previous data, apply the current configuration, update the time and date, and calibrate the dosimeter.

Acoustic Calibrator FAQs

Answers to common questions about choosing an acoustic calibrator.

An Acoustic Calibrator (also known as field calibrator or sound level calibrator) is a hand-held device that emits an audible tone at a standard noise level and frequency.

For compliance with noise measurement legislation, such as the Noise at Work Regulations, you should field calibrate your sound level meter or dosimeter before and after taking noise measurements. This is done by fitting the calibrator over the meter’s microphone and checking the reading. Sound level meters such as Pulsar Instruments™ Nova range ask the user to calibrate their meter when they switch it on, the meter then automatically checks the reading.

An Acoustic Calibrator should meet the standard IEC 60942 to either Class 1 or Class 2. A Class 1 calibrator is used with Class 1 sound level meters for example which require more accuracy (less tolerance) than the Class 2 (which is correspondingly used to calibrate a Class 2 sound level meter. In general, if you have a Class 1 (or Type 1) Sound Level Meter then you should use a Class 1 Calibrator. If you have a Class 2 Sound Level Meter you can use either a Class 2 or Class 1 Calibrator.

NoiseBadge Reader Unit

Dual-Level Acoustic Calibrator

Acoustic Calibrator

Acoustic Calibrators for Sound Level Meters

Dual-level Acoustic Calibrators for Sound Level Meters and Noise Dosimeters

NoiseBadge Reader Unit with Integrated Calibrator

Acoustic Calibrator FAQs

What is an Acoustic Calibrator?

Which Class acoustic calibrator do I need?