Rent a Sound Level Calibrator (Class 1 & Class 2)
Freshly verified 1/2-inch sound level calibrators (94 dB / 114 dB @ 1,000 Hz) for weekly rental—with 100% credit of the first week's rental fee toward purchase.
- Immediately ready for 1/2-inch measurement microphones (and 1/4-inch via adapter)
- Available in Class 2 (Center 326) or Class 1 (Brüel & Kjær 4230 / 4231)
- 100% credit of one week's rental fee if you decide to buy
Available Versions & Services
Current prices from Dresden stock / lab
Rental Center 326
Weekly rental Center 326 Class 2 sound level calibrator (1,000 Hz, 94 dB & 114 dB) with 100% purchase credit.
Rental Center 326 with calibration sheet
Weekly rental Center 326 Class 2 including current calibration certificate for your test reports.
rental Bruel&Kjaer 4231 Sound level calibrator class 1
Weekly rental Brüel & Kjær 4231 Class 1 calibrator (94 dB & 114 dB @ 1,000 Hz).
3-Step Procedure
1. Select Rental Unit
Choose the appropriate calibrator (with or without certificate) for your project below.
2. Fast Dispatch
We ship the freshly verified unit in its protective case in time for your measurement.
3. Return or Purchase
Simply return it after your project or credit 100% of the rental fee toward purchase.
Which Rental Calibrator Fits Your Microphone?
Click to expand technical details and standard references
Which Rental Calibrator Fits Your Microphone?
Click to expand technical details and standard references
Both rental calibrators (Center 326 and Brüel & Kjær 4231) feature a standard 1/2-inch cavity (12.7 mm) and an active feedback control loop: an internal reference microphone monitors the sound pressure inside the coupler and actively maintains 94.0 dB or 114.0 dB regardless of barometric pressure or effective load volume.
This allows you to accurately calibrate smaller capsules using our precision reduction adapters (e.g. Art. 7150 for 1/4-inch or Art. 7157 for Bedrock SM50) without pressure drop errors.
100% Rental Credit Upon Later Purchase
If you decide to purchase the instrument after your measurement campaign, up to two weeks of rental fees are 100% credited toward the purchase price. All instruments are verified in our laboratory before shipment.